51252043 has 4 divisors (see below), whose sum is σ = 52342560. Its totient is φ = 50161528.

The previous prime is 51252031. The next prime is 51252107. The reversal of 51252043 is 34025215.

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

It is a cyclic number.

It is not a de Polignac number, because 51252043 - 2²⁵ = 17697611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51252013) 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, 545188 + ... + 545281.

It is an arithmetic number, because the mean of its divisors is an integer number (13085640).

Almost surely, 2^51252043 is an apocalyptic number.

51252043 is a deficient number, since it is larger than the sum of its proper divisors (1090517).

51252043 is a wasteful number, since it uses less digits than its factorization.

51252043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090516.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 51252043 is about 7159.0532195256. The cubic root of 51252043 is about 371.4528777345.

Adding to 51252043 its reverse (34025215), we get a palindrome (85277258).

The spelling of 51252043 in words is "fifty-one million, two hundred fifty-two thousand, forty-three".