25251402775 has 12 divisors (see below), whose sum is σ = 32039920792. Its totient is φ = 19731327840.

The previous prime is 25251402769. The next prime is 25251402797. The reversal of 25251402775 is 57720415252.

It is not a de Polignac number, because 25251402775 - 2¹⁹ = 25250878487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 11743764 + ... + 11745913.

Almost surely, 2^25251402775 is an apocalyptic number.

25251402775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25251402775 is a deficient number, since it is larger than the sum of its proper divisors (6788518017).

25251402775 is a wasteful number, since it uses less digits than its factorization.

25251402775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23489730 (or 23489725 counting only the distinct ones).

The product of its (nonzero) digits is 196000, while the sum is 40.

The spelling of 25251402775 in words is "twenty-five billion, two hundred fifty-one million, four hundred two thousand, seven hundred seventy-five".