556040120431 has 8 divisors (see below), whose sum is σ = 581843106144. Its totient is φ = 530804233440.

The previous prime is 556040120411. The next prime is 556040120459. The reversal of 556040120431 is 134021040655.

It is a happy number.

556040120431 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 556040120431 - 2¹⁵ = 556040087663 is a prime.

It is a super-2 number, since 2×556040120431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 556040120393 and 556040120402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556040120411) 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, 141772675 + ... + 141776596.

It is an arithmetic number, because the mean of its divisors is an integer number (72730388268).

Almost surely, 2^556040120431 is an apocalyptic number.

556040120431 is a deficient number, since it is larger than the sum of its proper divisors (25802985713).

556040120431 is a wasteful number, since it uses less digits than its factorization.

556040120431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283549361.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 556040120431 in words is "five hundred fifty-six billion, forty million, one hundred twenty thousand, four hundred thirty-one".