625364405 has 4 divisors (see below), whose sum is σ = 750437292. Its totient is φ = 500291520.

The previous prime is 625364401. The next prime is 625364419. The reversal of 625364405 is 504463526.

It is a happy number.

625364405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 443060401 + 182304004 = 21049^2 + 13502^2 .

It is not a de Polignac number, because 625364405 - 2² = 625364401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625364401) 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, 62536436 + ... + 62536445.

It is an arithmetic number, because the mean of its divisors is an integer number (187609323).

Almost surely, 2^625364405 is an apocalyptic number.

It is an amenable number.

625364405 is a deficient number, since it is larger than the sum of its proper divisors (125072887).

625364405 is a wasteful number, since it uses less digits than its factorization.

625364405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125072886.

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 625364405 is about 25007.2870379815. The cubic root of 625364405 is about 855.1541073971.

The spelling of 625364405 in words is "six hundred twenty-five million, three hundred sixty-four thousand, four hundred five".