725156247 has 32 divisors (see below), whose sum is σ = 1022976000. Its totient is φ = 456318720.

The previous prime is 725156221. The next prime is 725156269. The reversal of 725156247 is 742651527.

It is not a de Polignac number, because 725156247 - 2⁶ = 725156183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725156297) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 653329 + ... + 654437.

It is an arithmetic number, because the mean of its divisors is an integer number (31968000).

Almost surely, 2^725156247 is an apocalyptic number.

725156247 is a deficient number, since it is larger than the sum of its proper divisors (297819753).

725156247 is a wasteful number, since it uses less digits than its factorization.

725156247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311.

The product of its digits is 117600, while the sum is 39.

The square root of 725156247 is about 26928.7253133155. The cubic root of 725156247 is about 898.4154203987.

The spelling of 725156247 in words is "seven hundred twenty-five million, one hundred fifty-six thousand, two hundred forty-seven".