72225752 has 16 divisors (see below), whose sum is σ = 135966600. Its totient is φ = 35968000.

The previous prime is 72225743. The next prime is 72225761. The reversal of 72225752 is 25752227.

It is an interprime number because it is at equal distance from previous prime (72225743) and next prime (72225761).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15977 + ... + 19992.

Almost surely, 2^72225752 is an apocalyptic number.

It is an amenable number.

72225752 is a deficient number, since it is larger than the sum of its proper divisors (63740848).

72225752 is a wasteful number, since it uses less digits than its factorization.

72225752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36226 (or 36222 counting only the distinct ones).

The product of its digits is 19600, while the sum is 32.

The square root of 72225752 is about 8498.5735273633. The cubic root of 72225752 is about 416.4511101219.

Adding to 72225752 its reverse (25752227), we get a palindrome (97977979).

The spelling of 72225752 in words is "seventy-two million, two hundred twenty-five thousand, seven hundred fifty-two".