20215054 has 8 divisors (see below), whose sum is σ = 30350808. Its totient is φ = 10098120.

The previous prime is 20215037. The next prime is 20215093. The reversal of 20215054 is 45051202.

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, 1612 + ... + 6559.

It is an arithmetic number, because the mean of its divisors is an integer number (3793851).

Almost surely, 2^20215054 is an apocalyptic number.

20215054 is a deficient number, since it is larger than the sum of its proper divisors (10135754).

20215054 is a wasteful number, since it uses less digits than its factorization.

20215054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9410.

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

The square root of 20215054 is about 4496.1154344612. The cubic root of 20215054 is about 272.4112058141.

Adding to 20215054 its reverse (45051202), we get a palindrome (65266256).

The spelling of 20215054 in words is "twenty million, two hundred fifteen thousand, fifty-four".