20061757 has 8 divisors (see below), whose sum is σ = 20373120. Its totient is φ = 19752480.

The previous prime is 20061737. The next prime is 20061761. The reversal of 20061757 is 75716002.

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 20061757 - 2¹¹ = 20059709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20061737) 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, 38098 + ... + 38620.

It is an arithmetic number, because the mean of its divisors is an integer number (2546640).

Almost surely, 2^20061757 is an apocalyptic number.

It is an amenable number.

20061757 is a deficient number, since it is larger than the sum of its proper divisors (311363).

20061757 is an equidigital number, since it uses as much as digits as its factorization.

20061757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 20061757 is about 4479.0352755923. The cubic root of 20061757 is about 271.7208650611.

Adding to 20061757 its reverse (75716002), we get a palindrome (95777759).

The spelling of 20061757 in words is "twenty million, sixty-one thousand, seven hundred fifty-seven".