72255183 has 32 divisors (see below), whose sum is σ = 129357312. Its totient is φ = 34646400.

The previous prime is 72255163. The next prime is 72255187. The reversal of 72255183 is 38155227.

It is not a de Polignac number, because 72255183 - 2¹² = 72251087 is a prime.

It is a super-2 number, since 2×72255183² = 10441622940726978, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72255187) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9028 + ... + 15033.

It is an arithmetic number, because the mean of its divisors is an integer number (4042416).

Almost surely, 2^72255183 is an apocalyptic number.

72255183 is a deficient number, since it is larger than the sum of its proper divisors (57102129).

72255183 is a wasteful number, since it uses less digits than its factorization.

72255183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24095.

The product of its digits is 16800, while the sum is 33.

The square root of 72255183 is about 8500.3048768853. The cubic root of 72255183 is about 416.5076684725.

It can be divided in two parts, 72 and 255183, that added together give a triangular number (255255 = T₇₁₄).

The spelling of 72255183 in words is "seventy-two million, two hundred fifty-five thousand, one hundred eighty-three".