56521000156315 has 8 divisors (see below), whose sum is σ = 70774121935008. Its totient is φ = 43250852293440.

The previous prime is 56521000156307. The next prime is 56521000156321. The reversal of 56521000156315 is 51365100012565.

It is a happy number.

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

It is not a de Polignac number, because 56521000156315 - 2³ = 56521000156307 is a prime.

It is a super-4 number, since 4×56521000156315⁴ (a number of 56 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245743478826 + ... + 245743479055.

It is an arithmetic number, because the mean of its divisors is an integer number (8846765241876).

Almost surely, 2^{56521000156315} is an apocalyptic number.

56521000156315 is a deficient number, since it is larger than the sum of its proper divisors (14253121778693).

56521000156315 is a wasteful number, since it uses less digits than its factorization.

56521000156315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491486957909.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 56521000156315 in words is "fifty-six trillion, five hundred twenty-one billion, one hundred fifty-six thousand, three hundred fifteen".