20955701 has 8 divisors (see below), whose sum is σ = 22615320. Its totient is φ = 19302912.

The previous prime is 20955667. The next prime is 20955707. The reversal of 20955701 is 10755902.

It can be written as a sum of positive squares in 4 ways, for example, as 34225 + 20921476 = 185^2 + 4574^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20955701 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20955707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5981 + ... + 8813.

It is an arithmetic number, because the mean of its divisors is an integer number (2826915).

Almost surely, 2^20955701 is an apocalyptic number.

It is an amenable number.

20955701 is a deficient number, since it is larger than the sum of its proper divisors (1659619).

20955701 is a wasteful number, since it uses less digits than its factorization.

20955701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3415.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 20955701 is about 4577.7397261094. The cubic root of 20955701 is about 275.6982849059.

The spelling of 20955701 in words is "twenty million, nine hundred fifty-five thousand, seven hundred one".