56513445 has 16 divisors (see below), whose sum is σ = 91955520. Its totient is φ = 29629184.

The previous prime is 56513437. The next prime is 56513453. The reversal of 56513445 is 54431565.

It is an interprime number because it is at equal distance from previous prime (56513437) and next prime (56513453).

It is a cyclic number.

It is not a de Polignac number, because 56513445 - 2³ = 56513437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31044 + ... + 32813.

It is an arithmetic number, because the mean of its divisors is an integer number (5747220).

Almost surely, 2^56513445 is an apocalyptic number.

It is an amenable number.

56513445 is a deficient number, since it is larger than the sum of its proper divisors (35442075).

56513445 is a wasteful number, since it uses less digits than its factorization.

56513445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63924.

The product of its digits is 36000, while the sum is 33.

The square root of 56513445 is about 7517.5424840835. The cubic root of 56513445 is about 383.7519489056.

The spelling of 56513445 in words is "fifty-six million, five hundred thirteen thousand, four hundred forty-five".