56471621003457 has 32 divisors (see below), whose sum is σ = 82271703454080. Its totient is φ = 34170584555520.

The previous prime is 56471621003437. The next prime is 56471621003461. The reversal of 56471621003457 is 75430012617465.

It is not a de Polignac number, because 56471621003457 - 2²³ = 56471612614849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56471621003437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207229269 + ... + 207501597.

It is an arithmetic number, because the mean of its divisors is an integer number (2570990732940).

Almost surely, 2^{56471621003457} is an apocalyptic number.

It is an amenable number.

56471621003457 is a deficient number, since it is larger than the sum of its proper divisors (25800082450623).

56471621003457 is a wasteful number, since it uses less digits than its factorization.

56471621003457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282353.

The product of its (nonzero) digits is 4233600, while the sum is 51.

The spelling of 56471621003457 in words is "fifty-six trillion, four hundred seventy-one billion, six hundred twenty-one million, three thousand, four hundred fifty-seven".