625053439 has 4 divisors (see below), whose sum is σ = 627783160. Its totient is φ = 622323720.

The previous prime is 625053437. The next prime is 625053463. The reversal of 625053439 is 934350526.

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

It is a cyclic number.

It is not a de Polignac number, because 625053439 - 2¹ = 625053437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 625053398 and 625053407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625053437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1364517 + ... + 1364974.

It is an arithmetic number, because the mean of its divisors is an integer number (156945790).

Almost surely, 2^625053439 is an apocalyptic number.

625053439 is a deficient number, since it is larger than the sum of its proper divisors (2729721).

625053439 is a wasteful number, since it uses less digits than its factorization.

625053439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729720.

The product of its (nonzero) digits is 97200, while the sum is 37.

The square root of 625053439 is about 25001.0687571552. The cubic root of 625053439 is about 855.0123404851.

The spelling of 625053439 in words is "six hundred twenty-five million, fifty-three thousand, four hundred thirty-nine".