725871051 has 20 divisors (see below), whose sum is σ = 1088218824. Its totient is φ = 482176800.

The previous prime is 725871031. The next prime is 725871059. The reversal of 725871051 is 150178527.

725871051 is a `hidden beast` number, since 72 + 587 + 1 + 0 + 5 + 1 = 666.

It is not a de Polignac number, because 725871051 - 2⁵ = 725871019 is a prime.

It is a super-3 number, since 3×725871051³ (a number of 28 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 725870997 and 725871015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725871059) 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 19 ways as a sum of consecutive naturals, for example, 6816 + ... + 38706.

Almost surely, 2^725871051 is an apocalyptic number.

725871051 is a deficient number, since it is larger than the sum of its proper divisors (362347773).

725871051 is a wasteful number, since it uses less digits than its factorization.

725871051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32184 (or 32175 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 36.

The square root of 725871051 is about 26941.9941912250. The cubic root of 725871051 is about 898.7105200395.

The spelling of 725871051 in words is "seven hundred twenty-five million, eight hundred seventy-one thousand, fifty-one".