54133212 has 24 divisors (see below), whose sum is σ = 144355456. Its totient is φ = 15466608.

The previous prime is 54133207. The next prime is 54133213. The reversal of 54133212 is 21233145.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54133213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322138 + ... + 322305.

Almost surely, 2^54133212 is an apocalyptic number.

It is an amenable number.

54133212 is an abundant number, since it is smaller than the sum of its proper divisors (90222244).

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

54133212 is a wasteful number, since it uses less digits than its factorization.

54133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644457 (or 644455 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 54133212 is about 7357.5275738525. The cubic root of 54133212 is about 378.2868682653.

Adding to 54133212 its reverse (21233145), we get a palindrome (75366357).

It can be divided in two parts, 54133 and 212, that added together give a palindrome (54345).

The spelling of 54133212 in words is "fifty-four million, one hundred thirty-three thousand, two hundred twelve".