72246525 has 24 divisors (see below), whose sum is σ = 128637600. Its totient is φ = 35567040.

The previous prime is 72246497. The next prime is 72246563. The reversal of 72246525 is 52564227.

It is not a de Polignac number, because 72246525 - 2¹⁰ = 72245501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36075 + ... + 38024.

It is an arithmetic number, because the mean of its divisors is an integer number (5359900).

Almost surely, 2^72246525 is an apocalyptic number.

72246525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

72246525 is a deficient number, since it is larger than the sum of its proper divisors (56391075).

72246525 is a wasteful number, since it uses less digits than its factorization.

72246525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74125 (or 74120 counting only the distinct ones).

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

The square root of 72246525 is about 8499.7955857773. The cubic root of 72246525 is about 416.4910317539.

It can be divided in two parts, 72246 and 525, that added together give a triangular number (72771 = T₃₈₁).

The spelling of 72246525 in words is "seventy-two million, two hundred forty-six thousand, five hundred twenty-five".