25980471 has 48 divisors (see below), whose sum is σ = 44478720. Its totient is φ = 14434560.

The previous prime is 25980463. The next prime is 25980497. The reversal of 25980471 is 17408952.

It is not a de Polignac number, because 25980471 - 2³ = 25980463 is a prime.

It is a super-3 number, since 3×25980471³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25980421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72190 + ... + 72548.

It is an arithmetic number, because the mean of its divisors is an integer number (926640).

Almost surely, 2^25980471 is an apocalyptic number.

25980471 is a deficient number, since it is larger than the sum of its proper divisors (18498249).

25980471 is a wasteful number, since it uses less digits than its factorization.

25980471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 433 counting only the distinct ones).

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

The square root of 25980471 is about 5097.1041778641. The cubic root of 25980471 is about 296.1754157165.

The spelling of 25980471 in words is "twenty-five million, nine hundred eighty thousand, four hundred seventy-one".