56726487 has 20 divisors (see below), whose sum is σ = 88426800. Its totient is φ = 36172224.

The previous prime is 56726479. The next prime is 56726491. The reversal of 56726487 is 78462765.

56726487 is a `hidden beast` number, since 567 + 2 + 6 + 4 + 87 = 666.

It is not a de Polignac number, because 56726487 - 2³ = 56726479 is a prime.

It is a super-2 number, since 2×56726487² = 6435788654722338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56726437) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13362 + ... + 17087.

It is an arithmetic number, because the mean of its divisors is an integer number (4421340).

Almost surely, 2^56726487 is an apocalyptic number.

56726487 is a deficient number, since it is larger than the sum of its proper divisors (31700313).

56726487 is a wasteful number, since it uses less digits than its factorization.

56726487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30484 (or 30475 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 56726487 is about 7531.6988123530. The cubic root of 56726487 is about 384.2335615246.

The spelling of 56726487 in words is "fifty-six million, seven hundred twenty-six thousand, four hundred eighty-seven".