72550752 has 24 divisors (see below), whose sum is σ = 190445976. Its totient is φ = 24183552.

The previous prime is 72550739. The next prime is 72550769. The reversal of 72550752 is 25705527.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×72550752² = 10527223231531008, 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 3 ways as a sum of consecutive naturals, for example, 377773 + ... + 377964.

It is an arithmetic number, because the mean of its divisors is an integer number (7935249).

Almost surely, 2^72550752 is an apocalyptic number.

It is an amenable number.

72550752 is an abundant number, since it is smaller than the sum of its proper divisors (117895224).

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

72550752 is a wasteful number, since it uses less digits than its factorization.

72550752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755750 (or 755742 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 72550752 is about 8517.6729216377. The cubic root of 72550752 is about 417.0748216700.

The spelling of 72550752 in words is "seventy-two million, five hundred fifty thousand, seven hundred fifty-two".