25032897908 has 6 divisors (see below), whose sum is σ = 43807571346. Its totient is φ = 12516448952.

The previous prime is 25032897893. The next prime is 25032897973. The reversal of 25032897908 is 80979823052.

It can be written as a sum of positive squares in only one way, i.e., 13114372324 + 11918525584 = 114518^2 + 109172^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25032897908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3129112235 + ... + 3129112242.

It is an arithmetic number, because the mean of its divisors is an integer number (7301261891).

Almost surely, 2^25032897908 is an apocalyptic number.

It is an amenable number.

25032897908 is a deficient number, since it is larger than the sum of its proper divisors (18774673438).

25032897908 is a wasteful number, since it uses less digits than its factorization.

25032897908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6258224481 (or 6258224479 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 25032897908 in words is "twenty-five billion, thirty-two million, eight hundred ninety-seven thousand, nine hundred eight".