51142210 has 16 divisors (see below), whose sum is σ = 105206976. Its totient is φ = 17534448.

The previous prime is 51142207. The next prime is 51142213. The reversal of 51142210 is 1224115.

It is an interprime number because it is at equal distance from previous prime (51142207) and next prime (51142213).

It is not an unprimeable number, because it can be changed into a prime (51142213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365232 + ... + 365371.

It is an arithmetic number, because the mean of its divisors is an integer number (6575436).

Almost surely, 2^51142210 is an apocalyptic number.

51142210 is an abundant number, since it is smaller than the sum of its proper divisors (54064766).

51142210 is a wasteful number, since it uses less digits than its factorization.

51142210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730617.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 51142210 is about 7151.3781888528. The cubic root of 51142210 is about 371.1873471042.

Adding to 51142210 its reverse (1224115), we get a palindrome (52366325).

The spelling of 51142210 in words is "fifty-one million, one hundred forty-two thousand, two hundred ten".