53625621903 has 40 divisors (see below), whose sum is σ = 83481586608. Its totient is φ = 30617903232.

The previous prime is 53625621887. The next prime is 53625621949. The reversal of 53625621903 is 30912652635.

It is a happy number.

It is not a de Polignac number, because 53625621903 - 2⁴ = 53625621887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53625621703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11933125 + ... + 11937617.

Almost surely, 2^53625621903 is an apocalyptic number.

53625621903 is a deficient number, since it is larger than the sum of its proper divisors (29855964705).

53625621903 is an equidigital number, since it uses as much as digits as its factorization.

53625621903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6181 (or 6160 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 42.

It can be divided in two parts, 5362 and 5621903, that added together give a palindrome (5627265).

The spelling of 53625621903 in words is "fifty-three billion, six hundred twenty-five million, six hundred twenty-one thousand, nine hundred three".