55243451 has 4 divisors (see below), whose sum is σ = 55283592. Its totient is φ = 55203312.

The previous prime is 55243423. The next prime is 55243453. The reversal of 55243451 is 15434255.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55243451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55243453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17930 + ... + 20783.

It is an arithmetic number, because the mean of its divisors is an integer number (13820898).

Almost surely, 2^55243451 is an apocalyptic number.

55243451 is a deficient number, since it is larger than the sum of its proper divisors (40141).

55243451 is a wasteful number, since it uses less digits than its factorization.

55243451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40140.

The product of its digits is 12000, while the sum is 29.

The square root of 55243451 is about 7432.5938271912. The cubic root of 55243451 is about 380.8555308636.

The spelling of 55243451 in words is "fifty-five million, two hundred forty-three thousand, four hundred fifty-one".