725053156 has 6 divisors (see below), whose sum is σ = 1268843030. Its totient is φ = 362526576.

The previous prime is 725053123. The next prime is 725053187. The reversal of 725053156 is 651350527.

It can be written as a sum of positive squares in only one way, i.e., 389430756 + 335622400 = 19734^2 + 18320^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90631641 + ... + 90631648.

Almost surely, 2^725053156 is an apocalyptic number.

It is an amenable number.

725053156 is a deficient number, since it is larger than the sum of its proper divisors (543789874).

725053156 is a wasteful number, since it uses less digits than its factorization.

725053156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181263293 (or 181263291 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 725053156 is about 26926.8110997199. The cubic root of 725053156 is about 898.3728443177.

It can be divided in two parts, 7250 and 53156, that added together give a palindrome (60406).

The spelling of 725053156 in words is "seven hundred twenty-five million, fifty-three thousand, one hundred fifty-six".