72508255 has 4 divisors (see below), whose sum is σ = 87009912. Its totient is φ = 58006600.

The previous prime is 72508201. The next prime is 72508273. The reversal of 72508255 is 55280527.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 72508255 - 2¹³ = 72500063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72508255.

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, 7250821 + ... + 7250830.

It is an arithmetic number, because the mean of its divisors is an integer number (21752478).

Almost surely, 2^72508255 is an apocalyptic number.

72508255 is a deficient number, since it is larger than the sum of its proper divisors (14501657).

72508255 is a wasteful number, since it uses less digits than its factorization.

72508255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14501656.

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 72508255 is about 8515.1779194565. The cubic root of 72508255 is about 416.9933711449.

The spelling of 72508255 in words is "seventy-two million, five hundred eight thousand, two hundred fifty-five".