25269291798 has 16 divisors (see below), whose sum is σ = 50563516080. Its totient is φ = 8418941856.

The previous prime is 25269291797. The next prime is 25269291799. The reversal of 25269291798 is 89719296252.

It is an interprime number because it is at equal distance from previous prime (25269291797) and next prime (25269291799).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25269291797) 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, 1025665 + ... + 1050012.

It is an arithmetic number, because the mean of its divisors is an integer number (3160219755).

Almost surely, 2^25269291798 is an apocalyptic number.

25269291798 is an abundant number, since it is smaller than the sum of its proper divisors (25294224282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25269291798 is a wasteful number, since it uses less digits than its factorization.

25269291798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077711.

The product of its digits is 9797760, while the sum is 60.

The spelling of 25269291798 in words is "twenty-five billion, two hundred sixty-nine million, two hundred ninety-one thousand, seven hundred ninety-eight".