25129523390 has 16 divisors (see below), whose sum is σ = 45430670880. Its totient is φ = 10007914080.

The previous prime is 25129523389. The next prime is 25129523411. The reversal of 25129523390 is 9332592152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5484506 + ... + 5489085.

It is an arithmetic number, because the mean of its divisors is an integer number (2839416930).

Almost surely, 2^25129523390 is an apocalyptic number.

25129523390 is a deficient number, since it is larger than the sum of its proper divisors (20301147490).

25129523390 is a wasteful number, since it uses less digits than its factorization.

25129523390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10973827.

The product of its (nonzero) digits is 145800, while the sum is 41.

The spelling of 25129523390 in words is "twenty-five billion, one hundred twenty-nine million, five hundred twenty-three thousand, three hundred ninety".