72522502 has 8 divisors (see below), whose sum is σ = 117151776. Its totient is φ = 33471912.

The previous prime is 72522491. The next prime is 72522521. The reversal of 72522502 is 20522527.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1394638 + ... + 1394689.

It is an arithmetic number, because the mean of its divisors is an integer number (14643972).

Almost surely, 2^72522502 is an apocalyptic number.

72522502 is a deficient number, since it is larger than the sum of its proper divisors (44629274).

72522502 is a wasteful number, since it uses less digits than its factorization.

72522502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2789342.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 72522502 is about 8516.0144433884. The cubic root of 72522502 is about 417.0206807503.

Adding to 72522502 its sum of digits (25), we get a palindrome (72522527).

The spelling of 72522502 in words is "seventy-two million, five hundred twenty-two thousand, five hundred two".