72550024 has 8 divisors (see below), whose sum is σ = 136031310. Its totient is φ = 36275008.

The previous prime is 72550019. The next prime is 72550031. The reversal of 72550024 is 42005527.

It can be written as a sum of positive squares in only one way, i.e., 58033924 + 14516100 = 7618^2 + 3810^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4534369 + ... + 4534384.

Almost surely, 2^72550024 is an apocalyptic number.

It is an amenable number.

72550024 is a deficient number, since it is larger than the sum of its proper divisors (63481286).

72550024 is a wasteful number, since it uses less digits than its factorization.

72550024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9068759 (or 9068755 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 72550024 is about 8517.6301868536. The cubic root of 72550024 is about 417.0734266397.

The spelling of 72550024 in words is "seventy-two million, five hundred fifty thousand, twenty-four".