623768525 has 6 divisors (see below), whose sum is σ = 773473002. Its totient is φ = 499014800.

The previous prime is 623768479. The next prime is 623768543. The reversal of 623768525 is 525867326.

It can be written as a sum of positive squares in 3 ways, for example, as 866761 + 622901764 = 931^2 + 24958^2 .

It is not a de Polignac number, because 623768525 - 2⁸ = 623768269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12475346 + ... + 12475395.

It is an arithmetic number, because the mean of its divisors is an integer number (128912167).

Almost surely, 2^623768525 is an apocalyptic number.

It is an amenable number.

623768525 is a deficient number, since it is larger than the sum of its proper divisors (149704477).

623768525 is a wasteful number, since it uses less digits than its factorization.

623768525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24950751 (or 24950746 counting only the distinct ones).

The product of its digits is 604800, while the sum is 44.

The square root of 623768525 is about 24975.3583557874. The cubic root of 623768525 is about 854.4260594180.

The spelling of 623768525 in words is "six hundred twenty-three million, seven hundred sixty-eight thousand, five hundred twenty-five".