52711540 has 24 divisors (see below), whose sum is σ = 126508032. Its totient is φ = 18072480.

The previous prime is 52711537. The next prime is 52711559. The reversal of 52711540 is 4511725.

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, 188116 + ... + 188395.

It is an arithmetic number, because the mean of its divisors is an integer number (5271168).

Almost surely, 2^52711540 is an apocalyptic number.

It is an amenable number.

52711540 is an abundant number, since it is smaller than the sum of its proper divisors (73796492).

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

52711540 is a wasteful number, since it uses less digits than its factorization.

52711540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376527 (or 376525 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 52711540 is about 7260.2713447915. The cubic root of 52711540 is about 374.9458647780.

The spelling of 52711540 in words is "fifty-two million, seven hundred eleven thousand, five hundred forty".