52661672 has 24 divisors (see below), whose sum is σ = 114862410. Its totient is φ = 22569120.

The previous prime is 52661663. The next prime is 52661677. The reversal of 52661672 is 27616625.

It can be written as a sum of positive squares in only one way, i.e., 39513796 + 13147876 = 6286^2 + 3626^2 .

It is not an unprimeable number, because it can be changed into a prime (52661677) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66779 + ... + 67562.

Almost surely, 2^52661672 is an apocalyptic number.

It is an amenable number.

52661672 is an abundant number, since it is smaller than the sum of its proper divisors (62200738).

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

52661672 is a wasteful number, since it uses less digits than its factorization.

52661672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134361 (or 134350 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 52661672 is about 7256.8362252431. The cubic root of 52661672 is about 374.8275877058.

The spelling of 52661672 in words is "fifty-two million, six hundred sixty-one thousand, six hundred seventy-two".