25261026435 has 24 divisors (see below), whose sum is σ = 43814875104. Its totient is φ = 13463594880.

The previous prime is 25261026421. The next prime is 25261026437. The reversal of 25261026435 is 53462016252.

25261026435 is a `hidden beast` number, since 2 + 5 + 2 + 6 + 1 + 0 + 2 + 643 + 5 = 666.

It is not a de Polignac number, because 25261026435 - 2¹⁶ = 25260960899 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25261026435.

It is not an unprimeable number, because it can be changed into a prime (25261026437) 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 23 ways as a sum of consecutive naturals, for example, 117762 + ... + 253751.

It is an arithmetic number, because the mean of its divisors is an integer number (1825619796).

Almost surely, 2^25261026435 is an apocalyptic number.

25261026435 is a deficient number, since it is larger than the sum of its proper divisors (18553848669).

25261026435 is a wasteful number, since it uses less digits than its factorization.

25261026435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373035 (or 373032 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 25261026435 in words is "twenty-five billion, two hundred sixty-one million, twenty-six thousand, four hundred thirty-five".