25006065601 has 4 divisors (see below), whose sum is σ = 27279344304. Its totient is φ = 22732786900.

The previous prime is 25006065583. The next prime is 25006065619. The reversal of 25006065601 is 10656060052.

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 an interprime number because it is at equal distance from previous prime (25006065583) and next prime (25006065619).

It is a cyclic number.

It is not a de Polignac number, because 25006065601 - 2¹³ = 25006057409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25006065631) 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, 1136639335 + ... + 1136639356.

It is an arithmetic number, because the mean of its divisors is an integer number (6819836076).

Almost surely, 2^25006065601 is an apocalyptic number.

It is an amenable number.

25006065601 is a deficient number, since it is larger than the sum of its proper divisors (2273278703).

25006065601 is a wasteful number, since it uses less digits than its factorization.

25006065601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273278702.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 25006065601 in words is "twenty-five billion, six million, sixty-five thousand, six hundred one".