56456400250465 has 4 divisors (see below), whose sum is σ = 67747680300564. Its totient is φ = 45165120200368.

The previous prime is 56456400250379. The next prime is 56456400250513. The reversal of 56456400250465 is 56405200465465.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33642412843264 + 22813987407201 = 5800208^2 + 4776399^2 .

It is a cyclic number.

It is not a de Polignac number, because 56456400250465 - 2¹³ = 56456400242273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5645640025042 + ... + 5645640025051.

It is an arithmetic number, because the mean of its divisors is an integer number (16936920075141).

Almost surely, 2^{56456400250465} is an apocalyptic number.

It is an amenable number.

56456400250465 is a deficient number, since it is larger than the sum of its proper divisors (11291280050099).

56456400250465 is a wasteful number, since it uses less digits than its factorization.

56456400250465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11291280050098.

The product of its (nonzero) digits is 17280000, while the sum is 52.

The spelling of 56456400250465 in words is "fifty-six trillion, four hundred fifty-six billion, four hundred million, two hundred fifty thousand, four hundred sixty-five".