25708481 has 8 divisors (see below), whose sum is σ = 26006400. Its totient is φ = 25412608.

The previous prime is 25708447. The next prime is 25708489. The reversal of 25708481 is 18480752.

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 25708481 - 2¹⁰ = 25707457 is a prime.

It is a super-2 number, since 2×25708481² = 1321851990654722, which contains 22 as substring.

It is a Duffinian number.

25708481 is a modest number, since divided by 8481 gives 2570 as remainder.

It is not an unprimeable number, because it can be changed into a prime (25708489) 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, 42620 + ... + 43218.

It is an arithmetic number, because the mean of its divisors is an integer number (3250800).

Almost surely, 2^25708481 is an apocalyptic number.

It is an amenable number.

25708481 is a deficient number, since it is larger than the sum of its proper divisors (297919).

25708481 is a wasteful number, since it uses less digits than its factorization.

25708481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 25708481 is about 5070.3531435197. The cubic root of 25708481 is about 295.1382326402.

The spelling of 25708481 in words is "twenty-five million, seven hundred eight thousand, four hundred eighty-one".