51553043 has 8 divisors (see below), whose sum is σ = 52390800. Its totient is φ = 50720608.

The previous prime is 51553013. The next prime is 51553063. The reversal of 51553043 is 34035515.

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

It is a cyclic number.

It is not a de Polignac number, because 51553043 - 2¹⁰ = 51552019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51553013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21173 + ... + 23481.

It is an arithmetic number, because the mean of its divisors is an integer number (6548850).

Almost surely, 2^51553043 is an apocalyptic number.

51553043 is a deficient number, since it is larger than the sum of its proper divisors (837757).

51553043 is a wasteful number, since it uses less digits than its factorization.

51553043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 51553043 is about 7180.0447770192. The cubic root of 51553043 is about 372.1786318829.

Adding to 51553043 its reverse (34035515), we get a palindrome (85588558).

The spelling of 51553043 in words is "fifty-one million, five hundred fifty-three thousand, forty-three".