625230353521 has 4 divisors (see below), whose sum is σ = 631300551232. Its totient is φ = 619160155812.

The previous prime is 625230353491. The next prime is 625230353557. The reversal of 625230353521 is 125353032526.

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.

It is a cyclic number.

It is not a de Polignac number, because 625230353521 - 2²⁵ = 625196799089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625230353221) 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, 3035098701 + ... + 3035098906.

It is an arithmetic number, because the mean of its divisors is an integer number (157825137808).

Almost surely, 2^625230353521 is an apocalyptic number.

It is an amenable number.

625230353521 is a deficient number, since it is larger than the sum of its proper divisors (6070197711).

625230353521 is a wasteful number, since it uses less digits than its factorization.

625230353521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6070197710.

The product of its (nonzero) digits is 162000, while the sum is 37.

The spelling of 625230353521 in words is "six hundred twenty-five billion, two hundred thirty million, three hundred fifty-three thousand, five hundred twenty-one".