51260043 has 16 divisors (see below), whose sum is σ = 72101120. Its totient is φ = 32304096.

The previous prime is 51260039. The next prime is 51260101. The reversal of 51260043 is 34006215.

It is a happy number.

It is not a de Polignac number, because 51260043 - 2² = 51260039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51260743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40821 + ... + 42057.

It is an arithmetic number, because the mean of its divisors is an integer number (4506320).

Almost surely, 2^51260043 is an apocalyptic number.

51260043 is a deficient number, since it is larger than the sum of its proper divisors (20841077).

51260043 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 12 representation: 51260043 = (15200463)₁₂.

51260043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 51260043 is about 7159.6119308242. The cubic root of 51260043 is about 371.4722035880.

Adding to 51260043 its reverse (34006215), we get a palindrome (85266258).

The spelling of 51260043 in words is "fifty-one million, two hundred sixty thousand, forty-three".