20214425 has 24 divisors (see below), whose sum is σ = 31253952. Its totient is φ = 12600000.

The previous prime is 20214413. The next prime is 20214427. The reversal of 20214425 is 52441202.

It is a happy number.

It is not a de Polignac number, because 20214425 - 2⁴ = 20214409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20214397 and 20214406.

It is not an unprimeable number, because it can be changed into a prime (20214427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3326 + ... + 7175.

It is an arithmetic number, because the mean of its divisors is an integer number (1302248).

Almost surely, 2^20214425 is an apocalyptic number.

20214425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20214425 is a deficient number, since it is larger than the sum of its proper divisors (11039527).

20214425 is a wasteful number, since it uses less digits than its factorization.

20214425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10529 (or 10524 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 20214425 is about 4496.0454846454. The cubic root of 20214425 is about 272.4083803880.

Adding to 20214425 its reverse (52441202), we get a palindrome (72655627).

It can be divided in two parts, 2021 and 4425, that added together give a palindrome (6446).

The spelling of 20214425 in words is "twenty million, two hundred fourteen thousand, four hundred twenty-five".