25747542 has 12 divisors (see below), whose sum is σ = 55786380. Its totient is φ = 8582508.

The previous prime is 25747531. The next prime is 25747543. The reversal of 25747542 is 24574752.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25747497 and 25747506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25747543) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 715192 + ... + 715227.

It is an arithmetic number, because the mean of its divisors is an integer number (4648865).

Almost surely, 2^25747542 is an apocalyptic number.

25747542 is an abundant number, since it is smaller than the sum of its proper divisors (30038838).

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

25747542 is a wasteful number, since it uses less digits than its factorization.

25747542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430427 (or 1430424 counting only the distinct ones).

The product of its digits is 78400, while the sum is 36.

The square root of 25747542 is about 5074.2035828295. The cubic root of 25747542 is about 295.2876328939.

The spelling of 25747542 in words is "twenty-five million, seven hundred forty-seven thousand, five hundred forty-two".