25534523 has 8 divisors (see below), whose sum is σ = 29230080. Its totient is φ = 21850920.

The previous prime is 25534519. The next prime is 25534541. The reversal of 25534523 is 32543552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25534523 - 2² = 25534519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25534543) 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 7 ways as a sum of consecutive naturals, for example, 2198 + ... + 7476.

It is an arithmetic number, because the mean of its divisors is an integer number (3653760).

Almost surely, 2^25534523 is an apocalyptic number.

25534523 is a deficient number, since it is larger than the sum of its proper divisors (3695557).

25534523 is an equidigital number, since it uses as much as digits as its factorization.

25534523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5977.

The product of its digits is 18000, while the sum is 29.

The square root of 25534523 is about 5053.1695993703. The cubic root of 25534523 is about 294.4710352263.

The spelling of 25534523 in words is "twenty-five million, five hundred thirty-four thousand, five hundred twenty-three".