625484121 has 4 divisors (see below), whose sum is σ = 833978832. Its totient is φ = 416989412.

The previous prime is 625484113. The next prime is 625484137. The reversal of 625484121 is 121484526.

It is a happy number.

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 625484121 - 2³ = 625484113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (625485121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104247351 + ... + 104247356.

It is an arithmetic number, because the mean of its divisors is an integer number (208494708).

Almost surely, 2^625484121 is an apocalyptic number.

It is an amenable number.

625484121 is a deficient number, since it is larger than the sum of its proper divisors (208494711).

625484121 is a wasteful number, since it uses less digits than its factorization.

625484121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208494710.

The product of its digits is 15360, while the sum is 33.

The square root of 625484121 is about 25009.6805457407. The cubic root of 625484121 is about 855.2086724349.

The spelling of 625484121 in words is "six hundred twenty-five million, four hundred eighty-four thousand, one hundred twenty-one".