51060513 has 8 divisors (see below), whose sum is σ = 77806528. Its totient is φ = 29177424.

The previous prime is 51060511. The next prime is 51060551. The reversal of 51060513 is 31506015.

It is a happy number.

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

It is not a de Polignac number, because 51060513 - 2¹ = 51060511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 2431453 = 51060513 / (5 + 1 + 0 + 6 + 0 + 5 + 1 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51060513.

It is not an unprimeable number, because it can be changed into a prime (51060511) 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, 1215706 + ... + 1215747.

It is an arithmetic number, because the mean of its divisors is an integer number (9725816).

Almost surely, 2^51060513 is an apocalyptic number.

It is an amenable number.

51060513 is a deficient number, since it is larger than the sum of its proper divisors (26746015).

51060513 is a wasteful number, since it uses less digits than its factorization.

51060513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431463.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 51060513 is about 7145.6639299648. The cubic root of 51060513 is about 370.9895909877.

Adding to 51060513 its reverse (31506015), we get a palindrome (82566528).

The spelling of 51060513 in words is "fifty-one million, sixty thousand, five hundred thirteen".