624750025 has 9 divisors (see below), whose sum is σ = 774845031. Its totient is φ = 499700040.

The previous prime is 624750023. The next prime is 624750029. The reversal of 624750025 is 520057426.

The square root of 624750025 is 24995.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 224910009 + 399840016 = 14997^2 + 19996^2 .

It is not a de Polignac number, because 624750025 - 2¹ = 624750023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (624750023) 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 8 ways as a sum of consecutive naturals, for example, 122476 + ... + 127474.

Almost surely, 2^624750025 is an apocalyptic number.

624750025 is the 24995-th square number.

624750025 is the 12498-th centered octagonal number.

It is an amenable number.

624750025 is a deficient number, since it is larger than the sum of its proper divisors (150095006).

624750025 is an frugal number, since it uses more digits than its factorization.

624750025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10008 (or 5004 counting only the distinct ones).

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

The cubic root of 624750025 is about 854.8739711416.

The spelling of 624750025 in words is "six hundred twenty-four million, seven hundred fifty thousand, twenty-five".