72551175 has 12 divisors (see below), whose sum is σ = 119951400. Its totient is φ = 38693920.

The previous prime is 72551173. The next prime is 72551197. The reversal of 72551175 is 57115527.

It is not a de Polignac number, because 72551175 - 2¹ = 72551173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72551173) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 483600 + ... + 483749.

It is an arithmetic number, because the mean of its divisors is an integer number (9995950).

Almost surely, 2^72551175 is an apocalyptic number.

72551175 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

72551175 is a deficient number, since it is larger than the sum of its proper divisors (47400225).

72551175 is a wasteful number, since it uses less digits than its factorization.

72551175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967362 (or 967357 counting only the distinct ones).

The product of its digits is 12250, while the sum is 33.

The square root of 72551175 is about 8517.6977523272. The cubic root of 72551175 is about 417.0756322396.

The spelling of 72551175 in words is "seventy-two million, five hundred fifty-one thousand, one hundred seventy-five".