25000063 has 4 divisors (see below), whose sum is σ = 27272808. Its totient is φ = 22727320.

The previous prime is 25000033. The next prime is 25000069. The reversal of 25000063 is 36000052.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-25000063 is a prime.

It is a Duffinian number.

25000063 is a modest number, since divided by 63 gives 25 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25000069) 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, 1136356 + ... + 1136377.

It is an arithmetic number, because the mean of its divisors is an integer number (6818202).

Almost surely, 2^25000063 is an apocalyptic number.

25000063 is a deficient number, since it is larger than the sum of its proper divisors (2272745).

25000063 is a wasteful number, since it uses less digits than its factorization.

25000063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272744.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 25000063 is about 5000.0062999960. The cubic root of 25000063 is about 292.4020194386.

The spelling of 25000063 in words is "twenty-five million, sixty-three", and thus it is an aban number and an uban number.