56249240 has 16 divisors (see below), whose sum is σ = 126560880. Its totient is φ = 22499680.

The previous prime is 56249239. The next prime is 56249257. The reversal of 56249240 is 4294265.

56249240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 56249197 and 56249206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703076 + ... + 703155.

It is an arithmetic number, because the mean of its divisors is an integer number (7910055).

Almost surely, 2^56249240 is an apocalyptic number.

It is an amenable number.

56249240 is an abundant number, since it is smaller than the sum of its proper divisors (70311640).

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

56249240 is a wasteful number, since it uses less digits than its factorization.

56249240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406242 (or 1406238 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 56249240 is about 7499.9493331622. The cubic root of 56249240 is about 383.1529905737.

The spelling of 56249240 in words is "fifty-six million, two hundred forty-nine thousand, two hundred forty".