25538742 has 24 divisors (see below), whose sum is σ = 55908216. Its totient is φ = 8424576.

The previous prime is 25538741. The next prime is 25538753. The reversal of 25538742 is 24783552.

It is a junction number, because it is equal to n+sod(n) for n = 25538697 and 25538706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25538741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5568 + ... + 9059.

It is an arithmetic number, because the mean of its divisors is an integer number (2329509).

Almost surely, 2^25538742 is an apocalyptic number.

25538742 is an abundant number, since it is smaller than the sum of its proper divisors (30369474).

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

25538742 is a wasteful number, since it uses less digits than its factorization.

25538742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14732 (or 14729 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 25538742 is about 5053.5870428835. The cubic root of 25538742 is about 294.4872525500.

The spelling of 25538742 in words is "twenty-five million, five hundred thirty-eight thousand, seven hundred forty-two".