20125061 has 4 divisors (see below), whose sum is σ = 21954624. Its totient is φ = 18295500.

The previous prime is 20125057. The next prime is 20125073. The reversal of 20125061 is 16052102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20125061 - 2² = 20125057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914765 + ... + 914786.

It is an arithmetic number, because the mean of its divisors is an integer number (5488656).

Almost surely, 2^20125061 is an apocalyptic number.

It is an amenable number.

20125061 is a deficient number, since it is larger than the sum of its proper divisors (1829563).

20125061 is a wasteful number, since it uses less digits than its factorization.

20125061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829562.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 20125061 is about 4486.0964100206. The cubic root of 20125061 is about 272.0063660924.

Adding to 20125061 its reverse (16052102), we get a palindrome (36177163).

The spelling of 20125061 in words is "twenty million, one hundred twenty-five thousand, sixty-one".