625424403 has 8 divisors (see below), whose sum is σ = 836290000. Its totient is φ = 415754208.

The previous prime is 625424363. The next prime is 625424447. The reversal of 625424403 is 304424526.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 625424403 - 2²⁶ = 558315539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625424453) 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 7 ways as a sum of consecutive naturals, for example, 297628 + ... + 299721.

It is an arithmetic number, because the mean of its divisors is an integer number (104536250).

Almost surely, 2^625424403 is an apocalyptic number.

625424403 is a deficient number, since it is larger than the sum of its proper divisors (210865597).

625424403 is a wasteful number, since it uses less digits than its factorization.

625424403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597701.

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 625424403 is about 25008.4866195458. The cubic root of 625424403 is about 855.1814545966.

Adding to 625424403 its reverse (304424526), we get a palindrome (929848929).

The spelling of 625424403 in words is "six hundred twenty-five million, four hundred twenty-four thousand, four hundred three".