623554455325 has 12 divisors (see below), whose sum is σ = 806825243808. Its totient is φ = 477154713200.

The previous prime is 623554455299. The next prime is 623554455347. The reversal of 623554455325 is 523554455326.

It is a happy number.

It is not a de Polignac number, because 623554455325 - 2¹³ = 623554447133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 542220691 + ... + 542221840.

It is an arithmetic number, because the mean of its divisors is an integer number (67235436984).

Almost surely, 2^623554455325 is an apocalyptic number.

It is an amenable number.

623554455325 is a deficient number, since it is larger than the sum of its proper divisors (183270788483).

623554455325 is a wasteful number, since it uses less digits than its factorization.

623554455325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084442564 (or 1084442559 counting only the distinct ones).

The product of its digits is 10800000, while the sum is 49.

Subtracting from 623554455325 its reverse (523554455326), we obtain a palindrome (99999999999).

The spelling of 623554455325 in words is "six hundred twenty-three billion, five hundred fifty-four million, four hundred fifty-five thousand, three hundred twenty-five".