20100054 has 32 divisors (see below), whose sum is σ = 43464960. Its totient is φ = 6160032.

The previous prime is 20100053. The next prime is 20100079. The reversal of 20100054 is 45000102.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33949 + ... + 34535.

It is an arithmetic number, because the mean of its divisors is an integer number (1358280).

Almost surely, 2^20100054 is an apocalyptic number.

20100054 is an abundant number, since it is smaller than the sum of its proper divisors (23364906).

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

20100054 is a wasteful number, since it uses less digits than its factorization.

20100054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 20100054 is about 4483.3083766344. The cubic root of 20100054 is about 271.8936561646.

Adding to 20100054 its reverse (45000102), we get a palindrome (65100156).

The spelling of 20100054 in words is "twenty million, one hundred thousand, fifty-four".