25269193516 has 48 divisors (see below), whose sum is σ = 53901965376. Its totient is φ = 10118191104.

The previous prime is 25269193493. The next prime is 25269193531. The reversal of 25269193516 is 61539196252.

It is a self number, because there is not a number n which added to its sum of digits gives 25269193516.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128535 + ... + 258958.

It is an arithmetic number, because the mean of its divisors is an integer number (1122957612).

Almost surely, 2^25269193516 is an apocalyptic number.

It is an amenable number.

25269193516 is an abundant number, since it is smaller than the sum of its proper divisors (28632771860).

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

25269193516 is a wasteful number, since it uses less digits than its factorization.

25269193516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387658 (or 387656 counting only the distinct ones).

The product of its digits is 874800, while the sum is 49.

The spelling of 25269193516 in words is "twenty-five billion, two hundred sixty-nine million, one hundred ninety-three thousand, five hundred sixteen".