72550112 has 24 divisors (see below), whose sum is σ = 147760200. Its totient is φ = 35023744.

The previous prime is 72550103. The next prime is 72550139. The reversal of 72550112 is 21105527.

It is a happy number.

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, 38162 + ... + 40017.

It is an arithmetic number, because the mean of its divisors is an integer number (6156675).

Almost surely, 2^72550112 is an apocalyptic number.

It is an amenable number.

72550112 is an abundant number, since it is smaller than the sum of its proper divisors (75210088).

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

72550112 is a wasteful number, since it uses less digits than its factorization.

72550112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78218 (or 78210 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 72550112 is about 8517.6353526081. The cubic root of 72550112 is about 417.0735952703.

Adding to 72550112 its reverse (21105527), we get a palindrome (93655639).

The spelling of 72550112 in words is "seventy-two million, five hundred fifty thousand, one hundred twelve".