25321542 has 32 divisors (see below), whose sum is σ = 52399872. Its totient is φ = 8151264.

The previous prime is 25321537. The next prime is 25321567. The reversal of 25321542 is 24512352.

It is a super-4 number, since 4×25321542⁴ (a number of 31 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36733 + ... + 37415.

It is an arithmetic number, because the mean of its divisors is an integer number (1637496).

Almost surely, 2^25321542 is an apocalyptic number.

25321542 is an abundant number, since it is smaller than the sum of its proper divisors (27078330).

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

25321542 is a wasteful number, since it uses less digits than its factorization.

25321542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892.

The product of its digits is 2400, while the sum is 24.

The square root of 25321542 is about 5032.0514703250. The cubic root of 25321542 is about 293.6500301436.

Adding to 25321542 its reverse (24512352), we get a palindrome (49833894).

The spelling of 25321542 in words is "twenty-five million, three hundred twenty-one thousand, five hundred forty-two".