51512441 has 8 divisors (see below), whose sum is σ = 53071200. Its totient is φ = 49968160.

The previous prime is 51512437. The next prime is 51512443. The reversal of 51512441 is 14421515.

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 51512441 - 2² = 51512437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51512443) 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, 3830 + ... + 10848.

It is an arithmetic number, because the mean of its divisors is an integer number (6633900).

Almost surely, 2^51512441 is an apocalyptic number.

It is an amenable number.

51512441 is a deficient number, since it is larger than the sum of its proper divisors (1558759).

51512441 is a wasteful number, since it uses less digits than its factorization.

51512441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7239.

The product of its digits is 800, while the sum is 23.

The square root of 51512441 is about 7177.2168004039. The cubic root of 51512441 is about 372.0808997560.

Adding to 51512441 its reverse (14421515), we get a palindrome (65933956).

The spelling of 51512441 in words is "fifty-one million, five hundred twelve thousand, four hundred forty-one".