25812042 has 32 divisors (see below), whose sum is σ = 53210304. Its totient is φ = 8342400.

The previous prime is 25812041. The next prime is 25812043. The reversal of 25812042 is 24021852.

It is an interprime number because it is at equal distance from previous prime (25812041) and next prime (25812043).

It is not an unprimeable number, because it can be changed into a prime (25812041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77817 + ... + 78147.

It is an arithmetic number, because the mean of its divisors is an integer number (1662822).

Almost surely, 2^25812042 is an apocalyptic number.

25812042 is an abundant number, since it is smaller than the sum of its proper divisors (27398262).

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

25812042 is a wasteful number, since it uses less digits than its factorization.

25812042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 25812042 is about 5080.5552846121. Note that the first 3 decimals coincide. The cubic root of 25812042 is about 295.5340016589.

Adding to 25812042 its reverse (24021852), we get a palindrome (49833894).

The spelling of 25812042 in words is "twenty-five million, eight hundred twelve thousand, forty-two".