52291992 has 32 divisors (see below), whose sum is σ = 132310080. Its totient is φ = 17220000.

The previous prime is 52291979. The next prime is 52292011. The reversal of 52291992 is 29919225.

It is a self number, because there is not a number n which added to its sum of digits gives 52291992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11134 + ... + 15117.

It is an arithmetic number, because the mean of its divisors is an integer number (4134690).

Almost surely, 2^52291992 is an apocalyptic number.

It is an amenable number.

52291992 is an abundant number, since it is smaller than the sum of its proper divisors (80018088).

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

52291992 is a wasteful number, since it uses less digits than its factorization.

52291992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26343 (or 26339 counting only the distinct ones).

The product of its digits is 29160, while the sum is 39.

The square root of 52291992 is about 7231.3202114137. The cubic root of 52291992 is about 373.9484424720.

The spelling of 52291992 in words is "fifty-two million, two hundred ninety-one thousand, nine hundred ninety-two".