51361110 has 96 divisors (see below), whose sum is σ = 141523200. Its totient is φ = 12902400.

The previous prime is 51361091. The next prime is 51361129. The reversal of 51361110 is 1116315.

51361110 is a `hidden beast` number, since 51 + 3 + 611 + 1 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (51361091) and next prime (51361129).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 114166 + ... + 114614.

It is an arithmetic number, because the mean of its divisors is an integer number (1474200).

Almost surely, 2^51361110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51361110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70761600).

51361110 is an abundant number, since it is smaller than the sum of its proper divisors (90162090).

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

51361110 is a wasteful number, since it uses less digits than its factorization.

51361110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 51361110 is about 7166.6665891473. Note that the first 3 decimals coincide. The cubic root of 51361110 is about 371.7161813642.

Adding to 51361110 its reverse (1116315), we get a palindrome (52477425).

The spelling of 51361110 in words is "fifty-one million, three hundred sixty-one thousand, one hundred ten".