56530971 has 12 divisors (see below), whose sum is σ = 93321072. Its totient is φ = 32303376.

The previous prime is 56530961. The next prime is 56530979. The reversal of 56530971 is 17903565.

It is a happy number.

56530971 is a `hidden beast` number, since 56 + 530 + 9 + 71 = 666.

It is not a de Polignac number, because 56530971 - 2¹³ = 56522779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56530979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 448596 + ... + 448721.

It is an arithmetic number, because the mean of its divisors is an integer number (7776756).

Almost surely, 2^56530971 is an apocalyptic number.

56530971 is a deficient number, since it is larger than the sum of its proper divisors (36790101).

56530971 is a wasteful number, since it uses less digits than its factorization.

56530971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897330 (or 897327 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 56530971 is about 7518.7080672147. The cubic root of 56530971 is about 383.7916146377.

The spelling of 56530971 in words is "fifty-six million, five hundred thirty thousand, nine hundred seventy-one".