25271424 has 48 divisors (see below), whose sum is σ = 72724470. Its totient is φ = 8423424.

The previous prime is 25271423. The next prime is 25271429. The reversal of 25271424 is 42417252.

It can be written as a sum of positive squares in only one way, i.e., 24206400 + 1065024 = 4920^2 + 1032^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (25271423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9817 + ... + 12120.

Almost surely, 2^25271424 is an apocalyptic number.

25271424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25271424 is an abundant number, since it is smaller than the sum of its proper divisors (47453046).

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

25271424 is a wasteful number, since it uses less digits than its factorization.

25271424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21957 (or 21942 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 25271424 is about 5027.0691262405. The cubic root of 25271424 is about 293.4561652701.

Adding to 25271424 its reverse (42417252), we get a palindrome (67688676).

The spelling of 25271424 in words is "twenty-five million, two hundred seventy-one thousand, four hundred twenty-four".