625244705 has 4 divisors (see below), whose sum is σ = 750293652. Its totient is φ = 500195760.

The previous prime is 625244689. The next prime is 625244743. The reversal of 625244705 is 507442526.

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 247369984 + 377874721 = 15728^2 + 19439^2 .

It is not a de Polignac number, because 625244705 - 2⁴ = 625244689 is a prime.

It is a super-2 number, since 2×625244705² = 781861882261074050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62524466 + ... + 62524475.

It is an arithmetic number, because the mean of its divisors is an integer number (187573413).

Almost surely, 2^625244705 is an apocalyptic number.

It is an amenable number.

625244705 is a deficient number, since it is larger than the sum of its proper divisors (125048947).

625244705 is a wasteful number, since it uses less digits than its factorization.

625244705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125048946.

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

The square root of 625244705 is about 25004.8936210495. The cubic root of 625244705 is about 855.0995426892.

The spelling of 625244705 in words is "six hundred twenty-five million, two hundred forty-four thousand, seven hundred five".