20525414 has 24 divisors (see below), whose sum is σ = 38572128. Its totient is φ = 8119440.

The previous prime is 20525413. The next prime is 20525419. The reversal of 20525414 is 41452502.

It is a happy number.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20525414.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20525411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6782 + ... + 9329.

It is an arithmetic number, because the mean of its divisors is an integer number (1607172).

Almost surely, 2^20525414 is an apocalyptic number.

20525414 is a deficient number, since it is larger than the sum of its proper divisors (18046714).

20525414 is a wasteful number, since it uses less digits than its factorization.

20525414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16140 (or 16133 counting only the distinct ones).

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

The square root of 20525414 is about 4530.4982065994. The cubic root of 20525414 is about 273.7982335448.

Adding to 20525414 its reverse (41452502), we get a palindrome (61977916).

The spelling of 20525414 in words is "twenty million, five hundred twenty-five thousand, four hundred fourteen".