625438741 has 4 divisors (see below), whose sum is σ = 639983872. Its totient is φ = 610893612.

The previous prime is 625438703. The next prime is 625438771. The reversal of 625438741 is 147834526.

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 625438741 - 2¹⁵ = 625405973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 625438694 and 625438703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625438771) 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, 7272501 + ... + 7272586.

It is an arithmetic number, because the mean of its divisors is an integer number (159995968).

Almost surely, 2^625438741 is an apocalyptic number.

It is an amenable number.

625438741 is a deficient number, since it is larger than the sum of its proper divisors (14545131).

625438741 is a wasteful number, since it uses less digits than its factorization.

625438741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14545130.

The product of its digits is 161280, while the sum is 40.

The square root of 625438741 is about 25008.7732805910. The cubic root of 625438741 is about 855.1879896246.

The spelling of 625438741 in words is "six hundred twenty-five million, four hundred thirty-eight thousand, seven hundred forty-one".