56040487 has 2 divisors, whose sum is σ = 56040488. Its totient is φ = 56040486.

The previous prime is 56040473. The next prime is 56040493. The reversal of 56040487 is 78404065.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56040487 - 2¹⁵ = 56007719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56040427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28020243 + 28020244.

It is an arithmetic number, because the mean of its divisors is an integer number (28020244).

Almost surely, 2^56040487 is an apocalyptic number.

56040487 is a deficient number, since it is larger than the sum of its proper divisors (1).

56040487 is an equidigital number, since it uses as much as digits as its factorization.

56040487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 56040487 is about 7486.0194362558. The cubic root of 56040487 is about 382.6784153492.

The spelling of 56040487 in words is "fifty-six million, forty thousand, four hundred eighty-seven".