Search a number
-
+
55013245 = 571571807
BaseRepresentation
bin1101000111011…
…0111101111101
310211111221222121
43101312331331
5103040410440
65243042541
71235414320
oct321667575
9124457877
1055013245
11290652a1
1216510451
13b522221
1474407b7
154c6a34a
hex3476f7d

55013245 has 8 divisors (see below), whose sum is σ = 75446784. Its totient is φ = 37723344.

The previous prime is 55013243. The next prime is 55013279. The reversal of 55013245 is 54231055.

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 55013245 - 21 = 55013243 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55013243) 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, 785869 + ... + 785938.

It is an arithmetic number, because the mean of its divisors is an integer number (9430848).

Almost surely, 255013245 is an apocalyptic number.

It is an amenable number.

55013245 is a deficient number, since it is larger than the sum of its proper divisors (20433539).

55013245 is a wasteful number, since it uses less digits than its factorization.

55013245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571819.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 55013245 is about 7417.0914110587. The cubic root of 55013245 is about 380.3257709625.

The spelling of 55013245 in words is "fifty-five million, thirteen thousand, two hundred forty-five".

Divisors: 1 5 7 35 1571807 7859035 11002649 55013245