56240587 has 8 divisors (see below), whose sum is σ = 61397504. Its totient is φ = 51202368.

The previous prime is 56240557. The next prime is 56240593. The reversal of 56240587 is 78504265.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 56240587 - 2¹⁹ = 55716299 is a prime.

It is a super-2 number, since 2×56240587² = 6326007252209138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56240557) 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, 28683 + ... + 30580.

It is an arithmetic number, because the mean of its divisors is an integer number (7674688).

Almost surely, 2^56240587 is an apocalyptic number.

56240587 is a deficient number, since it is larger than the sum of its proper divisors (5156917).

56240587 is a wasteful number, since it uses less digits than its factorization.

56240587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59349.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 56240587 is about 7499.3724404113. The cubic root of 56240587 is about 383.1333423506.

The spelling of 56240587 in words is "fifty-six million, two hundred forty thousand, five hundred eighty-seven".