25431054 has 48 divisors (see below), whose sum is σ = 58375296. Its totient is φ = 7366480.

The previous prime is 25431053. The next prime is 25431071. The reversal of 25431054 is 45013452.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25431053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15937 + ... + 17459.

It is an arithmetic number, because the mean of its divisors is an integer number (1216152).

Almost surely, 2^25431054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25431054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29187648).

25431054 is an abundant number, since it is smaller than the sum of its proper divisors (32944242).

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

25431054 is a wasteful number, since it uses less digits than its factorization.

25431054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573 (or 1562 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 25431054 is about 5042.9211772543. The cubic root of 25431054 is about 294.0727526002.

The spelling of 25431054 in words is "twenty-five million, four hundred thirty-one thousand, fifty-four".