25465191514 has 24 divisors (see below), whose sum is σ = 47047937940. Its totient is φ = 10271673216.

The previous prime is 25465191511. The next prime is 25465191523. The reversal of 25465191514 is 41519156452.

It can be written as a sum of positive squares in 2 ways, for example, as 23033222289 + 2431969225 = 151767^2 + 49315^2 .

It is a super-2 number, since 2×25465191514² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25465191511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7640949 + ... + 7644280.

Almost surely, 2^25465191514 is an apocalyptic number.

25465191514 is a deficient number, since it is larger than the sum of its proper divisors (21582746426).

25465191514 is a wasteful number, since it uses less digits than its factorization.

25465191514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15285262 (or 15285255 counting only the distinct ones).

The product of its digits is 216000, while the sum is 43.

The spelling of 25465191514 in words is "twenty-five billion, four hundred sixty-five million, one hundred ninety-one thousand, five hundred fourteen".