25623416 has 64 divisors (see below), whose sum is σ = 60204480. Its totient is φ = 9953280.

The previous prime is 25623407. The next prime is 25623461. The reversal of 25623416 is 61432652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44120 + ... + 44696.

It is an arithmetic number, because the mean of its divisors is an integer number (940695).

Almost surely, 2^25623416 is an apocalyptic number.

25623416 is a gapful number since it is divisible by the number (26) 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 25623416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30102240).

25623416 is an abundant number, since it is smaller than the sum of its proper divisors (34581064).

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

25623416 is a wasteful number, since it uses less digits than its factorization.

25623416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664 (or 660 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 25623416 is about 5061.9577240431. The cubic root of 25623416 is about 294.8123521756.

The spelling of 25623416 in words is "twenty-five million, six hundred twenty-three thousand, four hundred sixteen".