25822542 has 16 divisors (see below), whose sum is σ = 51956352. Its totient is φ = 8555640.

The previous prime is 25822523. The next prime is 25822543. The reversal of 25822542 is 24522852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25822543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11884 + ... + 13887.

It is an arithmetic number, because the mean of its divisors is an integer number (3247272).

Almost surely, 2^25822542 is an apocalyptic number.

25822542 is an abundant number, since it is smaller than the sum of its proper divisors (26133810).

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

25822542 is a wasteful number, since it uses less digits than its factorization.

25822542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25943.

The product of its digits is 12800, while the sum is 30.

The square root of 25822542 is about 5081.5885311583. The cubic root of 25822542 is about 295.5740693444.

The spelling of 25822542 in words is "twenty-five million, eight hundred twenty-two thousand, five hundred forty-two".