56487031 has 2 divisors, whose sum is σ = 56487032. Its totient is φ = 56487030.

The previous prime is 56487017. The next prime is 56487071. The reversal of 56487031 is 13078465.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56487031 - 2⁵ = 56486999 is a prime.

It is a super-2 number, since 2×56487031² = 6381569342389922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56487001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28243515 + 28243516.

It is an arithmetic number, because the mean of its divisors is an integer number (28243516).

Almost surely, 2^56487031 is an apocalyptic number.

56487031 is a deficient number, since it is larger than the sum of its proper divisors (1).

56487031 is an equidigital number, since it uses as much as digits as its factorization.

56487031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 56487031 is about 7515.7854546281. The cubic root of 56487031 is about 383.6921519043.

The spelling of 56487031 in words is "fifty-six million, four hundred eighty-seven thousand, thirty-one".