25471020 has 48 divisors (see below), whose sum is σ = 75075840. Its totient is φ = 6434496.

The previous prime is 25470997. The next prime is 25471021. The reversal of 25471020 is 2017452.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (25471021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10032 + ... + 12311.

It is an arithmetic number, because the mean of its divisors is an integer number (1564080).

Almost surely, 2^25471020 is an apocalyptic number.

25471020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25471020 is an abundant number, since it is smaller than the sum of its proper divisors (49604820).

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

25471020 is a wasteful number, since it uses less digits than its factorization.

25471020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22374 (or 22372 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 25471020 is about 5046.8822058772. The cubic root of 25471020 is about 294.2267213171.

Adding to 25471020 its reverse (2017452), we get a palindrome (27488472).

The spelling of 25471020 in words is "twenty-five million, four hundred seventy-one thousand, twenty".