20053718 has 4 divisors (see below), whose sum is σ = 30080580. Its totient is φ = 10026858.

The previous prime is 20053717. The next prime is 20053763. The reversal of 20053718 is 81735002.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20053717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5013428 + ... + 5013431.

It is an arithmetic number, because the mean of its divisors is an integer number (7520145).

Almost surely, 2^20053718 is an apocalyptic number.

20053718 is a deficient number, since it is larger than the sum of its proper divisors (10026862).

20053718 is a wasteful number, since it uses less digits than its factorization.

20053718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10026861.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 20053718 is about 4478.1377826056. The cubic root of 20053718 is about 271.6845662154.

The spelling of 20053718 in words is "twenty million, fifty-three thousand, seven hundred eighteen".