51488243 has 8 divisors (see below), whose sum is σ = 52800000. Its totient is φ = 50181768.

The previous prime is 51488231. The next prime is 51488249. The reversal of 51488243 is 34288415.

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-51488243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51488249) 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, 24758 + ... + 26756.

It is an arithmetic number, because the mean of its divisors is an integer number (6600000).

Almost surely, 2^51488243 is an apocalyptic number.

51488243 is a deficient number, since it is larger than the sum of its proper divisors (1311757).

51488243 is a wasteful number, since it uses less digits than its factorization.

51488243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641.

The product of its digits is 30720, while the sum is 35.

The square root of 51488243 is about 7175.5308514423. The cubic root of 51488243 is about 372.0226288890.

The spelling of 51488243 in words is "fifty-one million, four hundred eighty-eight thousand, two hundred forty-three".