725873501 has 4 divisors (see below), whose sum is σ = 727132092. Its totient is φ = 724614912.

The previous prime is 725873483. The next prime is 725873503. The reversal of 725873501 is 105378527.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 555544900 + 170328601 = 23570^2 + 13051^2 .

It is a cyclic number.

It is not a de Polignac number, because 725873501 - 2²² = 721679197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725873503) 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, 628430 + ... + 629583.

It is an arithmetic number, because the mean of its divisors is an integer number (181783023).

Almost surely, 2^725873501 is an apocalyptic number.

It is an amenable number.

725873501 is a deficient number, since it is larger than the sum of its proper divisors (1258591).

725873501 is a wasteful number, since it uses less digits than its factorization.

725873501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258590.

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 725873501 is about 26942.0396592389. The cubic root of 725873501 is about 898.7115311641.

The spelling of 725873501 in words is "seven hundred twenty-five million, eight hundred seventy-three thousand, five hundred one".