725254213 has 4 divisors (see below), whose sum is σ = 725308128. Its totient is φ = 725200300.

The previous prime is 725254181. The next prime is 725254219. The reversal of 725254213 is 312452527.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 312452527 = 379 ⋅824413.

It is a cyclic number.

It is not a de Polignac number, because 725254213 - 2⁵ = 725254181 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 (725254219) 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, 11688 + ... + 39838.

It is an arithmetic number, because the mean of its divisors is an integer number (181327032).

Almost surely, 2^725254213 is an apocalyptic number.

It is an amenable number.

725254213 is a deficient number, since it is larger than the sum of its proper divisors (53915).

725254213 is a wasteful number, since it uses less digits than its factorization.

725254213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53914.

The product of its digits is 16800, while the sum is 31.

The square root of 725254213 is about 26930.5442388378. The cubic root of 725254213 is about 898.4558761406.

The spelling of 725254213 in words is "seven hundred twenty-five million, two hundred fifty-four thousand, two hundred thirteen".