25511151028 has 24 divisors (see below), whose sum is σ = 48778904160. Its totient is φ = 11577930720.

The previous prime is 25511151023. The next prime is 25511151047. The reversal of 25511151028 is 82015111552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25511151023) 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, 422563 + ... + 479146.

It is an arithmetic number, because the mean of its divisors is an integer number (2032454340).

Almost surely, 2^25511151028 is an apocalyptic number.

It is an amenable number.

25511151028 is a deficient number, since it is larger than the sum of its proper divisors (23267753132).

25511151028 is a wasteful number, since it uses less digits than its factorization.

25511151028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902367 (or 902365 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 31.

The spelling of 25511151028 in words is "twenty-five billion, five hundred eleven million, one hundred fifty-one thousand, twenty-eight".