25201830 has 16 divisors (see below), whose sum is σ = 60484464. Its totient is φ = 6720480.

The previous prime is 25201829. The next prime is 25201867. The reversal of 25201830 is 3810252.

It is a junction number, because it is equal to n+sod(n) for n = 25201797 and 25201806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420001 + ... + 420060.

It is an arithmetic number, because the mean of its divisors is an integer number (3780279).

Almost surely, 2^25201830 is an apocalyptic number.

25201830 is an abundant number, since it is smaller than the sum of its proper divisors (35282634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25201830 is a wasteful number, since it uses less digits than its factorization.

25201830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840071.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 25201830 is about 5020.1424282584. The cubic root of 25201830 is about 293.1865384078.

The spelling of 25201830 in words is "twenty-five million, two hundred one thousand, eight hundred thirty".