25455534 has 16 divisors (see below), whose sum is σ = 54827472. Its totient is φ = 7832448.

The previous prime is 25455517. The next prime is 25455571. The reversal of 25455534 is 43555452.

It is a super-2 number, since 2×25455534² = 1295968422450312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25455495 and 25455504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163099 + ... + 163254.

It is an arithmetic number, because the mean of its divisors is an integer number (3426717).

Almost surely, 2^25455534 is an apocalyptic number.

25455534 is an abundant number, since it is smaller than the sum of its proper divisors (29371938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25455534 is a wasteful number, since it uses less digits than its factorization.

25455534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326371.

The product of its digits is 60000, while the sum is 33.

The square root of 25455534 is about 5045.3477580837. The cubic root of 25455534 is about 294.1670807435.

The spelling of 25455534 in words is "twenty-five million, four hundred fifty-five thousand, five hundred thirty-four".