25417868 has 36 divisors (see below), whose sum is σ = 53022312. Its totient is φ = 10624320.

The previous prime is 25417841. The next prime is 25417879. The reversal of 25417868 is 86871452.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6455 + ... + 9617.

It is an arithmetic number, because the mean of its divisors is an integer number (1472842).

Almost surely, 2^25417868 is an apocalyptic number.

25417868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25417868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26511156).

25417868 is an abundant number, since it is smaller than the sum of its proper divisors (27604444).

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

25417868 is a wasteful number, since it uses less digits than its factorization.

25417868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3222 (or 3213 counting only the distinct ones).

The product of its digits is 107520, while the sum is 41.

The square root of 25417868 is about 5041.6136305750. The cubic root of 25417868 is about 294.0219182450.

The spelling of 25417868 in words is "twenty-five million, four hundred seventeen thousand, eight hundred sixty-eight".