555785401 has 8 divisors (see below), whose sum is σ = 570737664. Its totient is φ = 540998640.

The previous prime is 555785383. The next prime is 555785413. The reversal of 555785401 is 104587555.

It is a happy number.

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 555785401 - 2⁷ = 555785273 is a prime.

It is a super-4 number, since 4×555785401⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (555785201) 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, 34555 + ... + 48016.

It is an arithmetic number, because the mean of its divisors is an integer number (71342208).

Almost surely, 2^555785401 is an apocalyptic number.

It is an amenable number.

555785401 is a deficient number, since it is larger than the sum of its proper divisors (14952263).

555785401 is a wasteful number, since it uses less digits than its factorization.

555785401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82751.

The product of its (nonzero) digits is 140000, while the sum is 40.

The square root of 555785401 is about 23575.1012935258. The cubic root of 555785401 is about 822.1840453347.

The spelling of 555785401 in words is "five hundred fifty-five million, seven hundred eighty-five thousand, four hundred one".