51270002 has 16 divisors (see below), whose sum is σ = 88421760. Its totient is φ = 21840288.

The previous prime is 51269987. The next prime is 51270007. The reversal of 51270002 is 20007215.

It is a super-2 number, since 2×51270002² = 5257226210160008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51270007) 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, 8627 + ... + 13302.

It is an arithmetic number, because the mean of its divisors is an integer number (5526360).

Almost surely, 2^51270002 is an apocalyptic number.

51270002 is a deficient number, since it is larger than the sum of its proper divisors (37151758).

51270002 is a wasteful number, since it uses less digits than its factorization.

51270002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22105.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 51270002 is about 7160.3073956360. The cubic root of 51270002 is about 371.4962590504.

Adding to 51270002 its reverse (20007215), we get a palindrome (71277217).

The spelling of 51270002 in words is "fifty-one million, two hundred seventy thousand, two".