25406798 has 16 divisors (see below), whose sum is σ = 39520656. Its totient is φ = 12240960.

The previous prime is 25406791. The next prime is 25406803. The reversal of 25406798 is 89760452.

It is a super-2 number, since 2×25406798² = 1291010769225608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25406791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4940 + ... + 8672.

It is an arithmetic number, because the mean of its divisors is an integer number (2470041).

Almost surely, 2^25406798 is an apocalyptic number.

25406798 is a deficient number, since it is larger than the sum of its proper divisors (14113858).

25406798 is a wasteful number, since it uses less digits than its factorization.

25406798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3859.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 25406798 is about 5040.5156482249. The cubic root of 25406798 is about 293.9792278659.

The spelling of 25406798 in words is "twenty-five million, four hundred six thousand, seven hundred ninety-eight".