56426540 has 48 divisors (see below), whose sum is σ = 121927680. Its totient is φ = 21927360.

The previous prime is 56426533. The next prime is 56426551. The reversal of 56426540 is 4562465.

It is a junction number, because it is equal to n+sod(n) for n = 56426497 and 56426506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111929 + ... + 112431.

It is an arithmetic number, because the mean of its divisors is an integer number (2540160).

Almost surely, 2^56426540 is an apocalyptic number.

It is an amenable number.

56426540 is an abundant number, since it is smaller than the sum of its proper divisors (65501140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56426540 is a wasteful number, since it uses less digits than its factorization.

56426540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 56426540 is about 7511.7601133157. The cubic root of 56426540 is about 383.5551398533. Note that the first 3 decimals are identical.

The spelling of 56426540 in words is "fifty-six million, four hundred twenty-six thousand, five hundred forty".