25560071 has 8 divisors (see below), whose sum is σ = 26096544. Its totient is φ = 25028640.

The previous prime is 25560047. The next prime is 25560077. The reversal of 25560071 is 17006552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25560071 - 2²² = 21365767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25560071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25560077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10001 + ... + 12293.

It is an arithmetic number, because the mean of its divisors is an integer number (3262068).

Almost surely, 2^25560071 is an apocalyptic number.

25560071 is a deficient number, since it is larger than the sum of its proper divisors (536473).

25560071 is a wasteful number, since it uses less digits than its factorization.

25560071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 25560071 is about 5055.6968856924. The cubic root of 25560071 is about 294.5692113095.

It can be divided in two parts, 255600 and 71, that multiplied together give a square (18147600 = 4260²).

The spelling of 25560071 in words is "twenty-five million, five hundred sixty thousand, seventy-one".