20125064 has 8 divisors (see below), whose sum is σ = 37734510. Its totient is φ = 10062528.

The previous prime is 20125057. The next prime is 20125073. The reversal of 20125064 is 46052102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14122564 + 6002500 = 3758^2 + 2450^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1257809 + ... + 1257824.

Almost surely, 2^20125064 is an apocalyptic number.

It is an amenable number.

20125064 is a deficient number, since it is larger than the sum of its proper divisors (17609446).

20125064 is a wasteful number, since it uses less digits than its factorization.

20125064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515639 (or 2515635 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20125064 is about 4486.0967443870. The cubic root of 20125064 is about 272.0063796082.

Adding to 20125064 its reverse (46052102), we get a palindrome (66177166).

The spelling of 20125064 in words is "twenty million, one hundred twenty-five thousand, sixty-four".