25419416 has 64 divisors (see below), whose sum is σ = 57196800. Its totient is φ = 10454400.

The previous prime is 25419413. The next prime is 25419421. The reversal of 25419416 is 61491452.

It is a super-2 number, since 2×25419416² = 1292293419562112, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (8640) is a multiple of the sum of its prime factors (720).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25419413) 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 15 ways as a sum of consecutive naturals, for example, 38126 + ... + 38786.

It is an arithmetic number, because the mean of its divisors is an integer number (893700).

Almost surely, 2^25419416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25419416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28598400).

25419416 is an abundant number, since it is smaller than the sum of its proper divisors (31777384).

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

25419416 is a wasteful number, since it uses less digits than its factorization.

25419416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 716 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 25419416 is about 5041.7671505138. The cubic root of 25419416 is about 294.0278869686.

Subtracting 25419416 from its reverse (61491452), we obtain a square (36072036 = 6006²).

The spelling of 25419416 in words is "twenty-five million, four hundred nineteen thousand, four hundred sixteen".