25224739955 has 16 divisors (see below), whose sum is σ = 30429043200. Its totient is φ = 20073738720.

The previous prime is 25224739921. The next prime is 25224739957. The reversal of 25224739955 is 55993742252.

It is not a de Polignac number, because 25224739955 - 2¹⁴ = 25224723571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25224739897 and 25224739906.

It is not an unprimeable number, because it can be changed into a prime (25224739957) 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, 1149476 + ... + 1171214.

It is an arithmetic number, because the mean of its divisors is an integer number (1901815200).

Almost surely, 2^25224739955 is an apocalyptic number.

25224739955 is a deficient number, since it is larger than the sum of its proper divisors (5204303245).

25224739955 is a wasteful number, since it uses less digits than its factorization.

25224739955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22954.

The product of its digits is 6804000, while the sum is 53.

The spelling of 25224739955 in words is "twenty-five billion, two hundred twenty-four million, seven hundred thirty-nine thousand, nine hundred fifty-five".