51161802 has 16 divisors (see below), whose sum is σ = 102401472. Its totient is φ = 17040960.

The previous prime is 51161797. The next prime is 51161807. The reversal of 51161802 is 20816115.

It is an interprime number because it is at equal distance from previous prime (51161797) and next prime (51161807).

It is not an unprimeable number, because it can be changed into a prime (51161807) 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, 8658 + ... + 13314.

It is an arithmetic number, because the mean of its divisors is an integer number (6400092).

Almost surely, 2^51161802 is an apocalyptic number.

51161802 is an abundant number, since it is smaller than the sum of its proper divisors (51239670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51161802 is a wasteful number, since it uses less digits than its factorization.

51161802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6493.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 51161802 is about 7152.7478635836. The cubic root of 51161802 is about 371.2347402722.

Adding to 51161802 its reverse (20816115), we get a palindrome (71977917).

The spelling of 51161802 in words is "fifty-one million, one hundred sixty-one thousand, eight hundred two".