52161492 has 24 divisors (see below), whose sum is σ = 121867200. Its totient is φ = 17364736.

The previous prime is 52161481. The next prime is 52161497. The reversal of 52161492 is 29416125.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52161497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8809 + ... + 13487.

It is an arithmetic number, because the mean of its divisors is an integer number (5077800).

Almost surely, 2^52161492 is an apocalyptic number.

It is an amenable number.

52161492 is an abundant number, since it is smaller than the sum of its proper divisors (69705708).

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

52161492 is a wasteful number, since it uses less digits than its factorization.

52161492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5615 (or 5613 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 52161492 is about 7222.2913261651. The cubic root of 52161492 is about 373.6371078451.

The spelling of 52161492 in words is "fifty-two million, one hundred sixty-one thousand, four hundred ninety-two".