25542823 has 16 divisors (see below), whose sum is σ = 28226880. Its totient is φ = 23005696.

The previous prime is 25542787. The next prime is 25542841. The reversal of 25542823 is 32824552.

It is a cyclic number.

It is not a de Polignac number, because 25542823 - 2¹³ = 25534631 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25542863) 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 15 ways as a sum of consecutive naturals, for example, 96990 + ... + 97252.

It is an arithmetic number, because the mean of its divisors is an integer number (1764180).

Almost surely, 2^25542823 is an apocalyptic number.

25542823 is a deficient number, since it is larger than the sum of its proper divisors (2684057).

25542823 is a wasteful number, since it uses less digits than its factorization.

25542823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506.

The product of its digits is 19200, while the sum is 31.

The square root of 25542823 is about 5053.9907993585. The cubic root of 25542823 is about 294.5029377193.

The spelling of 25542823 in words is "twenty-five million, five hundred forty-two thousand, eight hundred twenty-three".