25323134445 has 24 divisors (see below), whose sum is σ = 50163924096. Its totient is φ = 11576289888.

The previous prime is 25323134407. The next prime is 25323134483. The reversal of 25323134445 is 54443132352.

25323134445 is a `hidden beast` number, since 253 + 23 + 1 + 344 + 45 = 666.

It is an interprime number because it is at equal distance from previous prime (25323134407) and next prime (25323134483).

It is not a de Polignac number, because 25323134445 - 2¹³ = 25323126253 is a prime.

It is a super-2 number, since 2×25323134445² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40195137 + ... + 40195766.

It is an arithmetic number, because the mean of its divisors is an integer number (2090163504).

Almost surely, 2^25323134445 is an apocalyptic number.

It is an amenable number.

25323134445 is a deficient number, since it is larger than the sum of its proper divisors (24840789651).

25323134445 is a wasteful number, since it uses less digits than its factorization.

25323134445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80390921 (or 80390918 counting only the distinct ones).

The product of its digits is 172800, while the sum is 36.

Adding to 25323134445 its reverse (54443132352), we get a palindrome (79766266797).

The spelling of 25323134445 in words is "twenty-five billion, three hundred twenty-three million, one hundred thirty-four thousand, four hundred forty-five".