25073136 has 90 divisors (see below), whose sum is σ = 77182560. Its totient is φ = 7592640.

The previous prime is 25073129. The next prime is 25073173. The reversal of 25073136 is 63137052.

It is a happy number.

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16705 + ... + 18143.

It is an arithmetic number, because the mean of its divisors is an integer number (857584).

Almost surely, 2^25073136 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 25073136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38591280).

25073136 is an abundant number, since it is smaller than the sum of its proper divisors (52109424).

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

25073136 is a wasteful number, since it uses less digits than its factorization.

25073136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475 (or 1455 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 25073136 is about 5007.3082589351. The cubic root of 25073136 is about 292.6866308393.

The spelling of 25073136 in words is "twenty-five million, seventy-three thousand, one hundred thirty-six".