54309012 has 12 divisors (see below), whose sum is σ = 126721056. Its totient is φ = 18103000.

The previous prime is 54308987. The next prime is 54309023. The reversal of 54309012 is 21090345.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×54309012² = 5898937568832288, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

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, 2262864 + ... + 2262887.

It is an arithmetic number, because the mean of its divisors is an integer number (10560088).

Almost surely, 2^54309012 is an apocalyptic number.

It is an amenable number.

54309012 is an abundant number, since it is smaller than the sum of its proper divisors (72412044).

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

54309012 is a wasteful number, since it uses less digits than its factorization.

54309012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4525758 (or 4525756 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 54309012 is about 7369.4648381005. The cubic root of 54309012 is about 378.6959268839.

Adding to 54309012 its reverse (21090345), we get a palindrome (75399357).

The spelling of 54309012 in words is "fifty-four million, three hundred nine thousand, twelve".