Search a number
-
+
555245235421 = 1396571607909
BaseRepresentation
bin10000001010001110011…
…00011110110011011101
31222002011222212110011221
420011013030132303131
533044120240013141
61103024240213341
755054331425552
oct10050714366335
91862158773157
10555245235421
111a4529507558
128b73a60a251
13404897b11a6
141cc34410a29
15e69ac21bd1
hex814731ecdd

555245235421 has 8 divisors (see below), whose sum is σ = 559325832800. Its totient is φ = 551165867280.

The previous prime is 555245235409. The next prime is 555245235443. The reversal of 555245235421 is 124532542555.

555245235421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 555245235421 - 29 = 555245234909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555245235451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 609415 + ... + 1217323.

It is an arithmetic number, because the mean of its divisors is an integer number (69915729100).

Almost surely, 2555245235421 is an apocalyptic number.

It is an amenable number.

555245235421 is a deficient number, since it is larger than the sum of its proper divisors (4080597379).

555245235421 is a wasteful number, since it uses less digits than its factorization.

555245235421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614619.

The product of its digits is 1200000, while the sum is 43.

Adding to 555245235421 its reverse (124532542555), we get a palindrome (679777777976).

The spelling of 555245235421 in words is "five hundred fifty-five billion, two hundred forty-five million, two hundred thirty-five thousand, four hundred twenty-one".

Divisors: 1 139 6571 607909 913369 84499351 3994570039 555245235421