20512054 has 8 divisors (see below), whose sum is σ = 31518648. Its totient is φ = 10005840.

The previous prime is 20512031. The next prime is 20512073. The reversal of 20512054 is 45021502.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124992 + ... + 125155.

It is an arithmetic number, because the mean of its divisors is an integer number (3939831).

Almost surely, 2^20512054 is an apocalyptic number.

20512054 is a deficient number, since it is larger than the sum of its proper divisors (11006594).

20512054 is a wasteful number, since it uses less digits than its factorization.

20512054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250190.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 20512054 is about 4529.0235150637. The cubic root of 20512054 is about 273.7388155255.

Adding to 20512054 its reverse (45021502), we get a palindrome (65533556).

The spelling of 20512054 in words is "twenty million, five hundred twelve thousand, fifty-four".