25285958619 has 16 divisors (see below), whose sum is σ = 34645508352. Its totient is φ = 16392375648.

The previous prime is 25285958611. The next prime is 25285958629. The reversal of 25285958619 is 91685958252.

It is not a de Polignac number, because 25285958619 - 2³ = 25285958611 is a prime.

It is a super-2 number, since 2×25285958619² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25285958611) 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, 134032 + ... + 261794.

It is an arithmetic number, because the mean of its divisors is an integer number (2165344272).

Almost surely, 2^25285958619 is an apocalyptic number.

25285958619 is a deficient number, since it is larger than the sum of its proper divisors (9359549733).

25285958619 is a wasteful number, since it uses less digits than its factorization.

25285958619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129586.

The product of its digits is 15552000, while the sum is 60.

The spelling of 25285958619 in words is "twenty-five billion, two hundred eighty-five million, nine hundred fifty-eight thousand, six hundred nineteen".