25715577093 has 16 divisors (see below), whose sum is σ = 34566045696. Its totient is φ = 17004481200.

The previous prime is 25715577079. The next prime is 25715577109. The reversal of 25715577093 is 39077551752.

It is not a de Polignac number, because 25715577093 - 2²¹ = 25713479941 is a prime.

It is a super-2 number, since 2×25715577093² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25715577023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2490780 + ... + 2501082.

It is an arithmetic number, because the mean of its divisors is an integer number (2160377856).

Almost surely, 2^25715577093 is an apocalyptic number.

It is an amenable number.

25715577093 is a deficient number, since it is larger than the sum of its proper divisors (8850468603).

25715577093 is a wasteful number, since it uses less digits than its factorization.

25715577093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16984.

The product of its (nonzero) digits is 2315250, while the sum is 51.

The spelling of 25715577093 in words is "twenty-five billion, seven hundred fifteen million, five hundred seventy-seven thousand, ninety-three".