52797720 has 32 divisors (see below), whose sum is σ = 158393520. Its totient is φ = 14079360.

The previous prime is 52797707. The next prime is 52797739. The reversal of 52797720 is 2779725.

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, 219871 + ... + 220110.

Almost surely, 2^52797720 is an apocalyptic number.

It is an amenable number.

52797720 is an abundant number, since it is smaller than the sum of its proper divisors (105595800).

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

52797720 is a wasteful number, since it uses less digits than its factorization.

52797720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439995 (or 439991 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 39.

The square root of 52797720 is about 7266.2039608037. The cubic root of 52797720 is about 375.1500910303.

The spelling of 52797720 in words is "fifty-two million, seven hundred ninety-seven thousand, seven hundred twenty".