72253610 has 32 divisors (see below), whose sum is σ = 152796672. Its totient is φ = 24252480.

The previous prime is 72253589. The next prime is 72253619. The reversal of 72253610 is 1635227.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72253610.

It is not an unprimeable number, because it can be changed into a prime (72253619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23834 + ... + 26693.

It is an arithmetic number, because the mean of its divisors is an integer number (4774896).

Almost surely, 2^72253610 is an apocalyptic number.

72253610 is an abundant number, since it is smaller than the sum of its proper divisors (80543062).

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

72253610 is a wasteful number, since it uses less digits than its factorization.

72253610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50558.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 72253610 is about 8500.2123502887. The cubic root of 72253610 is about 416.5046459843.

Adding to 72253610 its reverse (1635227), we get a palindrome (73888837).

The spelling of 72253610 in words is "seventy-two million, two hundred fifty-three thousand, six hundred ten".