25906001 has 8 divisors (see below), whose sum is σ = 28317600. Its totient is φ = 23503840.

The previous prime is 25905991. The next prime is 25906003. The reversal of 25906001 is 10060952.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25906001 is a prime.

It is a super-2 number, since 2×25906001² = 1342241775624002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25906003) 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, 4190 + ... + 8328.

It is an arithmetic number, because the mean of its divisors is an integer number (3539700).

Almost surely, 2^25906001 is an apocalyptic number.

It is an amenable number.

25906001 is a deficient number, since it is larger than the sum of its proper divisors (2411599).

25906001 is a wasteful number, since it uses less digits than its factorization.

25906001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4719.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 25906001 is about 5089.7938072185. The cubic root of 25906001 is about 295.8921607714.

Adding to 25906001 its reverse (10060952), we get a palindrome (35966953).

The spelling of 25906001 in words is "twenty-five million, nine hundred six thousand, one".