25742086 has 4 divisors (see below), whose sum is σ = 38613132. Its totient is φ = 12871042.

The previous prime is 25742081. The next prime is 25742107. The reversal of 25742086 is 68024752.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25742081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6435520 + ... + 6435523.

It is an arithmetic number, because the mean of its divisors is an integer number (9653283).

Almost surely, 2^25742086 is an apocalyptic number.

25742086 is a deficient number, since it is larger than the sum of its proper divisors (12871046).

25742086 is a wasteful number, since it uses less digits than its factorization.

25742086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12871045.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 25742086 is about 5073.6659330311. The cubic root of 25742086 is about 295.2667739043.

Subtracting from 25742086 its product of nonzero digits (26880), we obtain a triangular number (25715206 = T₇₁₇₁).

The spelling of 25742086 in words is "twenty-five million, seven hundred forty-two thousand, eighty-six".