25353052530 has 64 divisors (see below), whose sum is σ = 65558263680. Its totient is φ = 6237858816.

The previous prime is 25353052519. The next prime is 25353052583. The reversal of 25353052530 is 3525035352.

It is a junction number, because it is equal to n+sod(n) for n = 25353052491 and 25353052500.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 898314 + ... + 926106.

It is an arithmetic number, because the mean of its divisors is an integer number (1024347870).

Almost surely, 2^25353052530 is an apocalyptic number.

25353052530 is an abundant number, since it is smaller than the sum of its proper divisors (40205211150).

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

25353052530 is a wasteful number, since it uses less digits than its factorization.

25353052530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30155.

The product of its (nonzero) digits is 67500, while the sum is 33.

Adding to 25353052530 its reverse (3525035352), we get a palindrome (28878087882).

The spelling of 25353052530 in words is "twenty-five billion, three hundred fifty-three million, fifty-two thousand, five hundred thirty".