56468987 has 4 divisors (see below), whose sum is σ = 57103560. Its totient is φ = 55834416.

The previous prime is 56468977. The next prime is 56469031. The reversal of 56468987 is 78986465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78986465 = 5 ⋅15797293.

It is a cyclic number.

It is not a de Polignac number, because 56468987 - 2²² = 52274683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56468957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317153 + ... + 317330.

It is an arithmetic number, because the mean of its divisors is an integer number (14275890).

Almost surely, 2^56468987 is an apocalyptic number.

56468987 is a deficient number, since it is larger than the sum of its proper divisors (634573).

56468987 is an equidigital number, since it uses as much as digits as its factorization.

56468987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634572.

The product of its digits is 2903040, while the sum is 53.

The square root of 56468987 is about 7514.5849519451. The cubic root of 56468987 is about 383.6512925048.

The spelling of 56468987 in words is "fifty-six million, four hundred sixty-eight thousand, nine hundred eighty-seven".