725270651 has 4 divisors (see below), whose sum is σ = 828880752. Its totient is φ = 621660552.

The previous prime is 725270621. The next prime is 725270653. The reversal of 725270651 is 156072527.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 725270651 - 2⁶ = 725270587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725270653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51805040 + ... + 51805053.

It is an arithmetic number, because the mean of its divisors is an integer number (207220188).

Almost surely, 2^725270651 is an apocalyptic number.

725270651 is a deficient number, since it is larger than the sum of its proper divisors (103610101).

725270651 is a wasteful number, since it uses less digits than its factorization.

725270651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103610100.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 725270651 is about 26930.8494296040. The cubic root of 725270651 is about 898.4626639703.

The spelling of 725270651 in words is "seven hundred twenty-five million, two hundred seventy thousand, six hundred fifty-one".