20219025 has 24 divisors (see below), whose sum is σ = 33908544. Its totient is φ = 10628800.

The previous prime is 20219011. The next prime is 20219033. The reversal of 20219025 is 52091202.

It is not a de Polignac number, because 20219025 - 2⁵ = 20218993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20218992 and 20219010.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3427 + ... + 7223.

It is an arithmetic number, because the mean of its divisors is an integer number (1412856).

Almost surely, 2^20219025 is an apocalyptic number.

20219025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20219025 is a deficient number, since it is larger than the sum of its proper divisors (13689519).

20219025 is a wasteful number, since it uses less digits than its factorization.

20219025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3881 (or 3876 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 20219025 is about 4496.5570162070. The cubic root of 20219025 is about 272.4290419289.

The spelling of 20219025 in words is "twenty million, two hundred nineteen thousand, twenty-five".