20057051 has 8 divisors (see below), whose sum is σ = 23013600. Its totient is φ = 17123328.

The previous prime is 20057047. The next prime is 20057069. The reversal of 20057051 is 15075002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20057051 - 2² = 20057047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20057021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3776 + ... + 7373.

It is an arithmetic number, because the mean of its divisors is an integer number (2876700).

Almost surely, 2^20057051 is an apocalyptic number.

20057051 is a deficient number, since it is larger than the sum of its proper divisors (2956549).

20057051 is a wasteful number, since it uses less digits than its factorization.

20057051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11413.

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 20057051 is about 4478.5099084405. The cubic root of 20057051 is about 271.6996170320.

The spelling of 20057051 in words is "twenty million, fifty-seven thousand, fifty-one".