25223054493 has 16 divisors (see below), whose sum is σ = 41391679616. Its totient is φ = 13304468160.

The previous prime is 25223054447. The next prime is 25223054503. The reversal of 25223054493 is 39445032252.

It is a happy number.

It is not a de Polignac number, because 25223054493 - 2¹⁰ = 25223053469 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25223054293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46195798 + ... + 46196343.

It is an arithmetic number, because the mean of its divisors is an integer number (2586979976).

Almost surely, 2^25223054493 is an apocalyptic number.

It is an amenable number.

25223054493 is a deficient number, since it is larger than the sum of its proper divisors (16168625123).

25223054493 is a wasteful number, since it uses less digits than its factorization.

25223054493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92392164.

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 25223054493 in words is "twenty-five billion, two hundred twenty-three million, fifty-four thousand, four hundred ninety-three".