72525246 has 16 divisors (see below), whose sum is σ = 145369344. Its totient is φ = 24121944.

The previous prime is 72525241. The next prime is 72525283. The reversal of 72525246 is 64252527.

It is a super-2 number, since 2×72525246² = 10519822614721032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72525241) 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, 10276 + ... + 15831.

It is an arithmetic number, because the mean of its divisors is an integer number (9085584).

Almost surely, 2^72525246 is an apocalyptic number.

72525246 is an abundant number, since it is smaller than the sum of its proper divisors (72844098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72525246 is a wasteful number, since it uses less digits than its factorization.

72525246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26575.

The product of its digits is 33600, while the sum is 33.

The square root of 72525246 is about 8516.1755500929. The cubic root of 72525246 is about 417.0259402228.

It can be divided in two parts, 72525 and 246, that added together give a triangular number (72771 = T₃₈₁).

The spelling of 72525246 in words is "seventy-two million, five hundred twenty-five thousand, two hundred forty-six".