10056400521 has 8 divisors (see below), whose sum is σ = 13411821600. Its totient is φ = 6702623232.

The previous prime is 10056400517. The next prime is 10056400547. The reversal of 10056400521 is 12500465001.

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

It is not a de Polignac number, because 10056400521 - 2² = 10056400517 is a prime.

It is a super-2 number, since 2×10056400521² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10056400491 and 10056400500.

It is not an unprimeable number, because it can be changed into a prime (10056400121) 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, 396600 + ... + 421193.

It is an arithmetic number, because the mean of its divisors is an integer number (1676477700).

Almost surely, 2^10056400521 is an apocalyptic number.

It is an amenable number.

10056400521 is a deficient number, since it is larger than the sum of its proper divisors (3355421079).

10056400521 is an equidigital number, since it uses as much as digits as its factorization.

10056400521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821895.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 10056400521 its reverse (12500465001), we get a palindrome (22556865522).

The spelling of 10056400521 in words is "ten billion, fifty-six million, four hundred thousand, five hundred twenty-one".