25730454 has 16 divisors (see below), whose sum is σ = 51867648. Its totient is φ = 8509032.

The previous prime is 25730449. The next prime is 25730461. The reversal of 25730454 is 45403752.

It is a super-2 number, since 2×25730454² = 1324112526092232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16122 + ... + 17645.

It is an arithmetic number, because the mean of its divisors is an integer number (3241728).

Almost surely, 2^25730454 is an apocalyptic number.

25730454 is an abundant number, since it is smaller than the sum of its proper divisors (26137194).

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

25730454 is a wasteful number, since it uses less digits than its factorization.

25730454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33899.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 25730454 is about 5072.5194923233. The cubic root of 25730454 is about 295.2222934302. Note that the first 4 decimals are identical.

The spelling of 25730454 in words is "twenty-five million, seven hundred thirty thousand, four hundred fifty-four".