25138662 has 16 divisors (see below), whose sum is σ = 50353920. Its totient is φ = 8366792.

The previous prime is 25138643. The next prime is 25138667. The reversal of 25138662 is 26683152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25138667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1639 + ... + 7277.

It is an arithmetic number, because the mean of its divisors is an integer number (3147120).

Almost surely, 2^25138662 is an apocalyptic number.

25138662 is an abundant number, since it is smaller than the sum of its proper divisors (25215258).

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

25138662 is a wasteful number, since it uses less digits than its factorization.

25138662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6387.

The product of its digits is 17280, while the sum is 33.

The square root of 25138662 is about 5013.8470259871. The cubic root of 25138662 is about 292.9413776105.

It can be divided in two parts, 2513 and 8662, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 25138662 in words is "twenty-five million, one hundred thirty-eight thousand, six hundred sixty-two".