55903243 has 8 divisors (see below), whose sum is σ = 61041456. Its totient is φ = 50774400.

The previous prime is 55903223. The next prime is 55903249. The reversal of 55903243 is 34230955.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55903243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55903249) 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, 17455 + ... + 20407.

It is an arithmetic number, because the mean of its divisors is an integer number (7630182).

Almost surely, 2^55903243 is an apocalyptic number.

55903243 is a deficient number, since it is larger than the sum of its proper divisors (5138213).

55903243 is a wasteful number, since it uses less digits than its factorization.

55903243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4685.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 55903243 is about 7476.8471296396. The cubic root of 55903243 is about 382.3657649065.

The spelling of 55903243 in words is "fifty-five million, nine hundred three thousand, two hundred forty-three".