52740765 has 96 divisors (see below), whose sum is σ = 117891072. Its totient is φ = 21168000.

The previous prime is 52740757. The next prime is 52740767. The reversal of 52740765 is 56704725.

52740765 = 381² + 382² + ... + 597².

It is not a de Polignac number, because 52740765 - 2³ = 52740757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52740767) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 107170 + ... + 107660.

It is an arithmetic number, because the mean of its divisors is an integer number (1228032).

Almost surely, 2^52740765 is an apocalyptic number.

52740765 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52740765 is an abundant number, since it is smaller than the sum of its proper divisors (65150307).

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

52740765 is a wasteful number, since it uses less digits than its factorization.

52740765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 52740765 is about 7262.2837317197. The cubic root of 52740765 is about 375.0151460549.

The spelling of 52740765 in words is "fifty-two million, seven hundred forty thousand, seven hundred sixty-five".