52752780 has 36 divisors (see below), whose sum is σ = 160017312. Its totient is φ = 14067360.

The previous prime is 52752737. The next prime is 52752781. The reversal of 52752780 is 8725725.

52752780 is a `hidden beast` number, since 52 + 7 + 527 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (52752781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146356 + ... + 146715.

Almost surely, 2^52752780 is an apocalyptic number.

It is an amenable number.

52752780 is an abundant number, since it is smaller than the sum of its proper divisors (107264532).

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

52752780 is a wasteful number, since it uses less digits than its factorization.

52752780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293086 (or 293081 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 52752780 is about 7263.1109037381. The cubic root of 52752780 is about 375.0436215922.

The spelling of 52752780 in words is "fifty-two million, seven hundred fifty-two thousand, seven hundred eighty".