25480197 has 16 divisors (see below), whose sum is σ = 39736000. Its totient is φ = 16092432.

The previous prime is 25480187. The next prime is 25480199. The reversal of 25480197 is 79108452.

It is not a de Polignac number, because 25480197 - 2¹⁰ = 25479173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25480199) 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, 24322 + ... + 25347.

It is an arithmetic number, because the mean of its divisors is an integer number (2483500).

Almost surely, 2^25480197 is an apocalyptic number.

25480197 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

25480197 is a deficient number, since it is larger than the sum of its proper divisors (14255803).

25480197 is a wasteful number, since it uses less digits than its factorization.

25480197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49697 (or 49691 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 25480197 is about 5047.7912991723. The cubic root of 25480197 is about 294.2620529006.

The spelling of 25480197 in words is "twenty-five million, four hundred eighty thousand, one hundred ninety-seven".