25240052340 has 72 divisors (see below), whose sum is σ = 79890265728. Its totient is φ = 6438041280.

The previous prime is 25240052339. The next prime is 25240052351. The reversal of 25240052340 is 4325004252.

It is a happy number.

25240052340 is a `hidden beast` number, since 25 + 2 + 400 + 5 + 234 + 0 = 666.

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, 3044176 + ... + 3052455.

It is an arithmetic number, because the mean of its divisors is an integer number (1109587024).

Almost surely, 2^25240052340 is an apocalyptic number.

25240052340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25240052340 is an abundant number, since it is smaller than the sum of its proper divisors (54650213388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25240052340 is a wasteful number, since it uses less digits than its factorization.

25240052340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6096669 (or 6096664 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 25240052340 its reverse (4325004252), we get a palindrome (29565056592).

The spelling of 25240052340 in words is "twenty-five billion, two hundred forty million, fifty-two thousand, three hundred forty".