78572252 has 48 divisors (see below), whose sum is σ = 156643200. Its totient is φ = 34157760.

The previous prime is 78572213. The next prime is 78572257. The reversal of 78572252 is 25227587.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78572257) 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, 177143 + ... + 177585.

It is an arithmetic number, because the mean of its divisors is an integer number (3263400).

Almost surely, 2^78572252 is an apocalyptic number.

It is an amenable number.

78572252 is a deficient number, since it is larger than the sum of its proper divisors (78070948).

78572252 is a wasteful number, since it uses less digits than its factorization.

78572252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 624 counting only the distinct ones).

The product of its digits is 78400, while the sum is 38.

The square root of 78572252 is about 8864.0990517931. The cubic root of 78572252 is about 428.3082110489.

It can be divided in two parts, 785 and 72252, that added together give a palindrome (73037).

The spelling of 78572252 in words is "seventy-eight million, five hundred seventy-two thousand, two hundred fifty-two".