25279732093 has 16 divisors (see below), whose sum is σ = 31556528640. Its totient is φ = 19674154800.

The previous prime is 25279732073. The next prime is 25279732097. The reversal of 25279732093 is 39023797252.

It is a cyclic number.

It is not a de Polignac number, because 25279732093 - 2¹³ = 25279723901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25279732097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139963 + ... + 264856.

It is an arithmetic number, because the mean of its divisors is an integer number (1972283040).

Almost surely, 2^25279732093 is an apocalyptic number.

It is an amenable number.

25279732093 is a deficient number, since it is larger than the sum of its proper divisors (6276796547).

25279732093 is a wasteful number, since it uses less digits than its factorization.

25279732093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405648.

The product of its (nonzero) digits is 1428840, while the sum is 49.

The spelling of 25279732093 in words is "twenty-five billion, two hundred seventy-nine million, seven hundred thirty-two thousand, ninety-three".