25234516530 has 48 divisors (see below), whose sum is σ = 66721786560. Its totient is φ = 6615148704.

The previous prime is 25234516513. The next prime is 25234516537. The reversal of 25234516530 is 3561543252.

25234516530 is a `hidden beast` number, since 2 + 523 + 45 + 1 + 65 + 30 = 666.

It is not an unprimeable number, because it can be changed into a prime (25234516537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2370822 + ... + 2381441.

It is an arithmetic number, because the mean of its divisors is an integer number (1390037220).

Almost surely, 2^25234516530 is an apocalyptic number.

25234516530 is an abundant number, since it is smaller than the sum of its proper divisors (41487270030).

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

25234516530 is a wasteful number, since it uses less digits than its factorization.

25234516530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4752335 (or 4752332 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 25234516530 in words is "twenty-five billion, two hundred thirty-four million, five hundred sixteen thousand, five hundred thirty".