72541550 has 48 divisors (see below), whose sum is σ = 147526272. Its totient is φ = 26419200.

The previous prime is 72541541. The next prime is 72541619. The reversal of 72541550 is 5514527.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24974 + ... + 27726.

It is an arithmetic number, because the mean of its divisors is an integer number (3073464).

Almost surely, 2^72541550 is an apocalyptic number.

72541550 is an abundant number, since it is smaller than the sum of its proper divisors (74984722).

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

72541550 is a wasteful number, since it uses less digits than its factorization.

72541550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813 (or 2808 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 72541550 is about 8517.1327334966. The cubic root of 72541550 is about 417.0571876475.

The spelling of 72541550 in words is "seventy-two million, five hundred forty-one thousand, five hundred fifty".