25415513011 has 6 divisors (see below), whose sum is σ = 29564984580. Its totient is φ = 21784725396.

The previous prime is 25415512999. The next prime is 25415513023. The reversal of 25415513011 is 11031551452.

It is an interprime number because it is at equal distance from previous prime (25415512999) and next prime (25415513023).

It is not a de Polignac number, because 25415513011 - 2⁷ = 25415512883 is a prime.

It is a super-2 number, since 2×25415513011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25415517011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 259341921 + ... + 259342018.

It is an arithmetic number, because the mean of its divisors is an integer number (4927497430).

Almost surely, 2^25415513011 is an apocalyptic number.

25415513011 is a deficient number, since it is larger than the sum of its proper divisors (4149471569).

25415513011 is an equidigital number, since it uses as much as digits as its factorization.

25415513011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518683953 (or 518683946 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 25415513011 in words is "twenty-five billion, four hundred fifteen million, five hundred thirteen thousand, eleven".