52661574 has 36 divisors (see below), whose sum is σ = 132730884. Its totient is φ = 15045912.

The previous prime is 52661561. The next prime is 52661579. The reversal of 52661574 is 47516625.

It is a happy number.

52661574 is a `hidden beast` number, since 5 + 26 + 61 + 574 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52661579) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28972 + ... + 30735.

It is an arithmetic number, because the mean of its divisors is an integer number (3686969).

Almost surely, 2^52661574 is an apocalyptic number.

52661574 is an abundant number, since it is smaller than the sum of its proper divisors (80069310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52661574 is a wasteful number, since it uses less digits than its factorization.

52661574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59729 (or 59719 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 52661574 is about 7256.8294729861. The cubic root of 52661574 is about 374.8273551956.

It can be divided in two parts, 52661 and 574, that added together give a palindrome (53235).

The spelling of 52661574 in words is "fifty-two million, six hundred sixty-one thousand, five hundred seventy-four".