51052215 has 16 divisors (see below), whose sum is σ = 81898848. Its totient is φ = 27156096.

The previous prime is 51052189. The next prime is 51052219. The reversal of 51052215 is 51225015.

It is not a de Polignac number, because 51052215 - 2⁹ = 51051703 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51052191 and 51052200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51052219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1669 + ... + 10241.

It is an arithmetic number, because the mean of its divisors is an integer number (5118678).

Almost surely, 2^51052215 is an apocalyptic number.

51052215 is a deficient number, since it is larger than the sum of its proper divisors (30846633).

51052215 is a wasteful number, since it uses less digits than its factorization.

51052215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8978.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 51052215 is about 7145.0832745322. The cubic root of 51052215 is about 370.9694930149.

It can be divided in two parts, 510 and 52215, that added together give a palindrome (52725).

The spelling of 51052215 in words is "fifty-one million, fifty-two thousand, two hundred fifteen".