25712071 has 8 divisors (see below), whose sum is σ = 32056704. Its totient is φ = 20035320.

The previous prime is 25712069. The next prime is 25712101. The reversal of 25712071 is 17021752.

It is a happy number.

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 25712071 - 2¹ = 25712069 is a prime.

It is a super-2 number, since 2×25712071² = 1322221190218082, which contains 22 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 (25712021) 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, 166885 + ... + 167038.

It is an arithmetic number, because the mean of its divisors is an integer number (4007088).

Almost surely, 2^25712071 is an apocalyptic number.

25712071 is a deficient number, since it is larger than the sum of its proper divisors (6344633).

25712071 is a wasteful number, since it uses less digits than its factorization.

25712071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333941.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 25712071 is about 5070.7071498954. The cubic root of 25712071 is about 295.1519699609.

The spelling of 25712071 in words is "twenty-five million, seven hundred twelve thousand, seventy-one".