72536155 has 8 divisors (see below), whose sum is σ = 87495552. Its totient is φ = 57727488.

The previous prime is 72536147. The next prime is 72536159. The reversal of 72536155 is 55163527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72536155 - 2³ = 72536147 is a prime.

It is a super-2 number, since 2×72536155² = 10522987564368050, which contains 22 as substring.

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 72536155.

It is not an unprimeable number, because it can be changed into a prime (72536159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36619 + ... + 38548.

It is an arithmetic number, because the mean of its divisors is an integer number (10936944).

Almost surely, 2^72536155 is an apocalyptic number.

72536155 is a deficient number, since it is larger than the sum of its proper divisors (14959397).

72536155 is a wasteful number, since it uses less digits than its factorization.

72536155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75365.

The product of its digits is 31500, while the sum is 34.

The square root of 72536155 is about 8516.8160130415. The cubic root of 72536155 is about 417.0468483807.

The spelling of 72536155 in words is "seventy-two million, five hundred thirty-six thousand, one hundred fifty-five".