725051512 has 8 divisors (see below), whose sum is σ = 1359471600. Its totient is φ = 362525752.

The previous prime is 725051507. The next prime is 725051521. The reversal of 725051512 is 215150527.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×725051512² = 1051399390106972288, 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, 45315712 + ... + 45315727.

It is an arithmetic number, because the mean of its divisors is an integer number (169933950).

Almost surely, 2^725051512 is an apocalyptic number.

It is an amenable number.

725051512 is a deficient number, since it is larger than the sum of its proper divisors (634420088).

725051512 is a wasteful number, since it uses less digits than its factorization.

725051512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90631445 (or 90631441 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 725051512 is about 26926.7805725081. The cubic root of 725051512 is about 898.3721653210.

It can be divided in two parts, 7250515 and 12, that added together give a palindrome (7250527).

The spelling of 725051512 in words is "seven hundred twenty-five million, fifty-one thousand, five hundred twelve".