72550965 has 16 divisors (see below), whose sum is σ = 116258688. Its totient is φ = 38634816.

The previous prime is 72550957. The next prime is 72550981. The reversal of 72550965 is 56905527.

It is not a de Polignac number, because 72550965 - 2³ = 72550957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7579 + ... + 14231.

It is an arithmetic number, because the mean of its divisors is an integer number (7266168).

Almost surely, 2^72550965 is an apocalyptic number.

It is an amenable number.

72550965 is a deficient number, since it is larger than the sum of its proper divisors (43707723).

72550965 is a wasteful number, since it uses less digits than its factorization.

72550965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7388.

The product of its (nonzero) digits is 94500, while the sum is 39.

The square root of 72550965 is about 8517.6854250436. The cubic root of 72550965 is about 417.0752298296.

The spelling of 72550965 in words is "seventy-two million, five hundred fifty thousand, nine hundred sixty-five".