25056001 has 4 divisors (see below), whose sum is σ = 25236400. Its totient is φ = 24875604.

The previous prime is 25055999. The next prime is 25056013. The reversal of 25056001 is 10065052.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25056001 - 2¹ = 25055999 is a prime.

It is a super-2 number, since 2×25056001² = 1255606372224002, which contains 22 as substring.

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 25056001.

It is not an unprimeable number, because it can be changed into a prime (25056601) 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, 89991 + ... + 90268.

It is an arithmetic number, because the mean of its divisors is an integer number (6309100).

Almost surely, 2^25056001 is an apocalyptic number.

It is an amenable number.

25056001 is a deficient number, since it is larger than the sum of its proper divisors (180399).

25056001 is a wasteful number, since it uses less digits than its factorization.

25056001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180398.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 25056001 is about 5005.5969673956. The cubic root of 25056001 is about 292.6199415573.

The spelling of 25056001 in words is "twenty-five million, fifty-six thousand, one".