25201340 has 12 divisors (see below), whose sum is σ = 52922856. Its totient is φ = 10080528.

The previous prime is 25201339. The next prime is 25201349. The reversal of 25201340 is 4310252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25201349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630014 + ... + 630053.

It is an arithmetic number, because the mean of its divisors is an integer number (4410238).

Almost surely, 2^25201340 is an apocalyptic number.

25201340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25201340 is an abundant number, since it is smaller than the sum of its proper divisors (27721516).

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

25201340 is a wasteful number, since it uses less digits than its factorization.

25201340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260076 (or 1260074 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 25201340 is about 5020.0936246249. The cubic root of 25201340 is about 293.1846382504.

Adding to 25201340 its reverse (4310252), we get a palindrome (29511592).

The spelling of 25201340 in words is "twenty-five million, two hundred one thousand, three hundred forty".