725337651 has 4 divisors (see below), whose sum is σ = 967116872. Its totient is φ = 483558432.

The previous prime is 725337643. The next prime is 725337653. The reversal of 725337651 is 156733527.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 725337651 - 2³ = 725337643 is a prime.

It is a super-2 number, since 2×725337651² = 1052229415916395602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725337653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120889606 + ... + 120889611.

It is an arithmetic number, because the mean of its divisors is an integer number (241779218).

Almost surely, 2^725337651 is an apocalyptic number.

725337651 is a deficient number, since it is larger than the sum of its proper divisors (241779221).

725337651 is a wasteful number, since it uses less digits than its factorization.

725337651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241779220.

The product of its digits is 132300, while the sum is 39.

The square root of 725337651 is about 26932.0933274783. The cubic root of 725337651 is about 898.4903295711.

The spelling of 725337651 in words is "seven hundred twenty-five million, three hundred thirty-seven thousand, six hundred fifty-one".