52457665 has 32 divisors (see below), whose sum is σ = 74299680. Its totient is φ = 35180544.

The previous prime is 52457663. The next prime is 52457677. The reversal of 52457665 is 56675425.

It can be written as a sum of positive squares in 16 ways, for example, as 27217089 + 25240576 = 5217^2 + 5024^2 .

It is a cyclic number.

It is not a de Polignac number, because 52457665 - 2¹ = 52457663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52457663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31227 + ... + 32863.

It is an arithmetic number, because the mean of its divisors is an integer number (2321865).

Almost surely, 2^52457665 is an apocalyptic number.

It is an amenable number.

52457665 is a deficient number, since it is larger than the sum of its proper divisors (21842015).

52457665 is a wasteful number, since it uses less digits than its factorization.

52457665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701.

The product of its digits is 252000, while the sum is 40.

The square root of 52457665 is about 7242.7663913728. The cubic root of 52457665 is about 374.3429442278.

The spelling of 52457665 in words is "fifty-two million, four hundred fifty-seven thousand, six hundred sixty-five".