25465511 has 4 divisors (see below), whose sum is σ = 25480392. Its totient is φ = 25450632.

The previous prime is 25465459. The next prime is 25465513. The reversal of 25465511 is 11556452.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25465511 - 2²² = 21271207 is a prime.

It is a super-2 number, since 2×25465511² = 1296984500982242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25465513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4481 + ... + 8426.

It is an arithmetic number, because the mean of its divisors is an integer number (6370098).

Almost surely, 2^25465511 is an apocalyptic number.

25465511 is a deficient number, since it is larger than the sum of its proper divisors (14881).

25465511 is a wasteful number, since it uses less digits than its factorization.

25465511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14880.

The product of its digits is 6000, while the sum is 29.

The square root of 25465511 is about 5046.3363938604. The cubic root of 25465511 is about 294.2055075104.

The spelling of 25465511 in words is "twenty-five million, four hundred sixty-five thousand, five hundred eleven".