25251392312 has 32 divisors (see below), whose sum is σ = 49859280000. Its totient is φ = 11956144608.

The previous prime is 25251392303. The next prime is 25251392317. The reversal of 25251392312 is 21329315252.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25251392317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339989 + ... + 407547.

It is an arithmetic number, because the mean of its divisors is an integer number (1558102500).

Almost surely, 2^25251392312 is an apocalyptic number.

It is an amenable number.

25251392312 is a deficient number, since it is larger than the sum of its proper divisors (24607887688).

25251392312 is a wasteful number, since it uses less digits than its factorization.

25251392312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70043 (or 70039 counting only the distinct ones).

The product of its digits is 32400, while the sum is 35.

The spelling of 25251392312 in words is "twenty-five billion, two hundred fifty-one million, three hundred ninety-two thousand, three hundred twelve".