20700054 has 24 divisors (see below), whose sum is σ = 45420960. Its totient is φ = 6812208.

The previous prime is 20700049. The next prime is 20700059. The reversal of 20700054 is 45000702.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20700049) and next prime (20700059).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20700059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5857 + ... + 8700.

It is an arithmetic number, because the mean of its divisors is an integer number (1892540).

Almost surely, 2^20700054 is an apocalyptic number.

20700054 is an abundant number, since it is smaller than the sum of its proper divisors (24720906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20700054 is a wasteful number, since it uses less digits than its factorization.

20700054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14644 (or 14641 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 20700054 is about 4549.7312008513. The cubic root of 20700054 is about 274.5725767861.

Adding to 20700054 its reverse (45000702), we get a palindrome (65700756).

The spelling of 20700054 in words is "twenty million, seven hundred thousand, fifty-four".