25970471 has 4 divisors (see below), whose sum is σ = 25986792. Its totient is φ = 25954152.

The previous prime is 25970459. The next prime is 25970479. The reversal of 25970471 is 17407952.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25970471 is a prime.

It is a super-3 number, since 3×25970471³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25970479) 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, 5480 + ... + 9053.

It is an arithmetic number, because the mean of its divisors is an integer number (6496698).

Almost surely, 2^25970471 is an apocalyptic number.

25970471 is a deficient number, since it is larger than the sum of its proper divisors (16321).

25970471 is a wasteful number, since it uses less digits than its factorization.

25970471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16320.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 25970471 is about 5096.1231343051. The cubic root of 25970471 is about 296.1374110907.

The spelling of 25970471 in words is "twenty-five million, nine hundred seventy thousand, four hundred seventy-one".