25251954 has 48 divisors (see below), whose sum is σ = 63278208. Its totient is φ = 6658848.

The previous prime is 25251943. The next prime is 25251973. The reversal of 25251954 is 45915252.

It is a super-2 number, since 2×25251954² = 1275322361636232, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 519 + ... + 7125.

It is an arithmetic number, because the mean of its divisors is an integer number (1318296).

Almost surely, 2^25251954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25251954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31639104).

25251954 is an abundant number, since it is smaller than the sum of its proper divisors (38026254).

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

25251954 is a wasteful number, since it uses less digits than its factorization.

25251954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6639 (or 6632 counting only the distinct ones).

The product of its digits is 18000, while the sum is 33.

The square root of 25251954 is about 5025.1322370660. The cubic root of 25251954 is about 293.3807829004.

The spelling of 25251954 in words is "twenty-five million, two hundred fifty-one thousand, nine hundred fifty-four".