54021212 has 12 divisors (see below), whose sum is σ = 108042480. Its totient is φ = 23151936.

The previous prime is 54021203. The next prime is 54021259. The reversal of 54021212 is 21212045.

54021212 is an admirable number.

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, 964637 + ... + 964692.

It is an arithmetic number, because the mean of its divisors is an integer number (9003540).

Almost surely, 2^54021212 is an apocalyptic number.

It is an amenable number.

54021212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

54021212 is a wasteful number, since it uses less digits than its factorization.

54021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929340 (or 1929338 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 54021212 is about 7349.9123804301. The cubic root of 54021212 is about 378.0258000549.

Adding to 54021212 its reverse (21212045), we get a palindrome (75233257).

The spelling of 54021212 in words is "fifty-four million, twenty-one thousand, two hundred twelve".