20414525 has 6 divisors (see below), whose sum is σ = 25314042. Its totient is φ = 16331600.

The previous prime is 20414503. The next prime is 20414533. The reversal of 20414525 is 52541402.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 11236 + 20403289 = 106^2 + 4517^2 .

It is not a de Polignac number, because 20414525 - 2¹⁸ = 20152381 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20414525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 408266 + ... + 408315.

It is an arithmetic number, because the mean of its divisors is an integer number (4219007).

Almost surely, 2^20414525 is an apocalyptic number.

20414525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20414525 is a deficient number, since it is larger than the sum of its proper divisors (4899517).

20414525 is an equidigital number, since it uses as much as digits as its factorization.

20414525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816591 (or 816586 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 20414525 is about 4518.2435746648. The cubic root of 20414525 is about 273.3042759447.

Adding to 20414525 its reverse (52541402), we get a palindrome (72955927).

The spelling of 20414525 in words is "twenty million, four hundred fourteen thousand, five hundred twenty-five".