72555076 has 48 divisors (see below), whose sum is σ = 145861632. Its totient is φ = 31276800.

The previous prime is 72555029. The next prime is 72555079. The reversal of 72555076 is 67055527.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (72555079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66205 + ... + 67291.

It is an arithmetic number, because the mean of its divisors is an integer number (3038784).

Almost surely, 2^72555076 is an apocalyptic number.

It is an amenable number.

72555076 is an abundant number, since it is smaller than the sum of its proper divisors (73306556).

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

72555076 is a wasteful number, since it uses less digits than its factorization.

72555076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180 (or 1178 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 37.

The square root of 72555076 is about 8517.9267430520. The cubic root of 72555076 is about 417.0831073443.

The spelling of 72555076 in words is "seventy-two million, five hundred fifty-five thousand, seventy-six".