25542870 has 32 divisors (see below), whose sum is σ = 62346240. Its totient is φ = 6695520.

The previous prime is 25542863. The next prime is 25542871. The reversal of 25542870 is 7824552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25542871) 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, 5446 + ... + 8985.

It is an arithmetic number, because the mean of its divisors is an integer number (1948320).

Almost surely, 2^25542870 is an apocalyptic number.

25542870 is an abundant number, since it is smaller than the sum of its proper divisors (36803370).

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

25542870 is a wasteful number, since it uses less digits than its factorization.

25542870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14500.

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 25542870 is about 5053.9954491471. The cubic root of 25542870 is about 294.5031183522.

The spelling of 25542870 in words is "twenty-five million, five hundred forty-two thousand, eight hundred seventy".