55243684 has 6 divisors (see below), whose sum is σ = 96676454. Its totient is φ = 27621840.

The previous prime is 55243681. The next prime is 55243703. The reversal of 55243684 is 48634255.

It can be written as a sum of positive squares in only one way, i.e., 29942784 + 25300900 = 5472^2 + 5030^2 .

It is not an unprimeable number, because it can be changed into a prime (55243681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6905457 + ... + 6905464.

Almost surely, 2^55243684 is an apocalyptic number.

It is an amenable number.

55243684 is a deficient number, since it is larger than the sum of its proper divisors (41432770).

55243684 is a wasteful number, since it uses less digits than its factorization.

55243684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13810925 (or 13810923 counting only the distinct ones).

The product of its digits is 115200, while the sum is 37.

The square root of 55243684 is about 7432.6095013797. The cubic root of 55243684 is about 380.8560663070.

The spelling of 55243684 in words is "fifty-five million, two hundred forty-three thousand, six hundred eighty-four".