20125324455 has 32 divisors (see below), whose sum is σ = 34104478464. Its totient is φ = 10099216896.

The previous prime is 20125324433. The next prime is 20125324469. The reversal of 20125324455 is 55442352102.

It is a happy number.

It is not a de Polignac number, because 20125324455 - 2¹¹ = 20125322407 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1082952 + ... + 1101378.

It is an arithmetic number, because the mean of its divisors is an integer number (1065764952).

Almost surely, 2^20125324455 is an apocalyptic number.

20125324455 is a deficient number, since it is larger than the sum of its proper divisors (13979154009).

20125324455 is a wasteful number, since it uses less digits than its factorization.

20125324455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22735.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 20125324455 its reverse (55442352102), we get a palindrome (75567676557).

The spelling of 20125324455 in words is "twenty billion, one hundred twenty-five million, three hundred twenty-four thousand, four hundred fifty-five".