52477720 has 32 divisors (see below), whose sum is σ = 123210720. Its totient is φ = 20078080.

The previous prime is 52477703. The next prime is 52477739. The reversal of 52477720 is 2777425.

It is a super-2 number, since 2×52477720² = 5507822192796800, which contains 22 as substring.

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, 27601 + ... + 29440.

It is an arithmetic number, because the mean of its divisors is an integer number (3850335).

Almost surely, 2^52477720 is an apocalyptic number.

It is an amenable number.

52477720 is an abundant number, since it is smaller than the sum of its proper divisors (70733000).

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

52477720 is a wasteful number, since it uses less digits than its factorization.

52477720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57075 (or 57071 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 34.

The square root of 52477720 is about 7244.1507438761. The cubic root of 52477720 is about 374.3906429529.

The spelling of 52477720 in words is "fifty-two million, four hundred seventy-seven thousand, seven hundred twenty".