72425212 has 6 divisors (see below), whose sum is σ = 126744128. Its totient is φ = 36212604.

The previous prime is 72425153. The next prime is 72425237. The reversal of 72425212 is 21252427.

It is a super-2 number, since 2×72425212² = 10490822666489888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9053148 + ... + 9053155.

Almost surely, 2^72425212 is an apocalyptic number.

It is an amenable number.

72425212 is a deficient number, since it is larger than the sum of its proper divisors (54318916).

72425212 is a wasteful number, since it uses less digits than its factorization.

72425212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18106307 (or 18106305 counting only the distinct ones).

The product of its digits is 2240, while the sum is 25.

The square root of 72425212 is about 8510.3003472263. The cubic root of 72425212 is about 416.8341175133.

Adding to 72425212 its reverse (21252427), we get a palindrome (93677639).

The spelling of 72425212 in words is "seventy-two million, four hundred twenty-five thousand, two hundred twelve".