625024457 has 4 divisors (see below), whose sum is σ = 625075476. Its totient is φ = 624973440.

The previous prime is 625024409. The next prime is 625024469. The reversal of 625024457 is 754420526.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 382163401 + 242861056 = 19549^2 + 15584^2 .

It is a cyclic number.

It is not a de Polignac number, because 625024457 - 2¹⁴ = 625008073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625024487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5153 + ... + 35729.

It is an arithmetic number, because the mean of its divisors is an integer number (156268869).

Almost surely, 2^625024457 is an apocalyptic number.

It is an amenable number.

625024457 is a deficient number, since it is larger than the sum of its proper divisors (51019).

625024457 is a wasteful number, since it uses less digits than its factorization.

625024457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51018.

The product of its (nonzero) digits is 67200, while the sum is 35.

The square root of 625024457 is about 25000.4891352149. The cubic root of 625024457 is about 854.9991254280. Note that the first 3 decimals are identical.

The spelling of 625024457 in words is "six hundred twenty-five million, twenty-four thousand, four hundred fifty-seven".