25098942494 has 16 divisors (see below), whose sum is σ = 40458000528. Its totient is φ = 11634978432.

The previous prime is 25098942493. The next prime is 25098942497. The reversal of 25098942494 is 49424989052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25098942493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5506709 + ... + 5511264.

It is an arithmetic number, because the mean of its divisors is an integer number (2528625033).

Almost surely, 2^25098942494 is an apocalyptic number.

25098942494 is a deficient number, since it is larger than the sum of its proper divisors (15359058034).

25098942494 is a wasteful number, since it uses less digits than its factorization.

25098942494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11018059.

The product of its (nonzero) digits is 7464960, while the sum is 56.

The spelling of 25098942494 in words is "twenty-five billion, ninety-eight million, nine hundred forty-two thousand, four hundred ninety-four".