72685250 has 32 divisors (see below), whose sum is σ = 148442112. Its totient is φ = 26430000.

The previous prime is 72685211. The next prime is 72685253. The reversal of 72685250 is 5258627.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 72685250.

It is not an unprimeable number, because it can be changed into a prime (72685253) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 10466 + ... + 15965.

It is an arithmetic number, because the mean of its divisors is an integer number (4638816).

Almost surely, 2^72685250 is an apocalyptic number.

72685250 is an abundant number, since it is smaller than the sum of its proper divisors (75756862).

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

72685250 is a wasteful number, since it uses less digits than its factorization.

72685250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26459 (or 26449 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 72685250 is about 8525.5644974395. The cubic root of 72685250 is about 417.3323935498.

The spelling of 72685250 in words is "seventy-two million, six hundred eighty-five thousand, two hundred fifty".