51114990 has 16 divisors (see below), whose sum is σ = 122676048. Its totient is φ = 13630656.

The previous prime is 51114983. The next prime is 51115049. The reversal of 51114990 is 9941115.

It is a super-2 number, since 2×51114990² = 5225484405400200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1703833 = 51114990 / (5 + 1 + 1 + 1 + 4 + 9 + 9 + 0).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 851887 + ... + 851946.

It is an arithmetic number, because the mean of its divisors is an integer number (7667253).

Almost surely, 2^51114990 is an apocalyptic number.

51114990 is an abundant number, since it is smaller than the sum of its proper divisors (71561058).

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

51114990 is a wasteful number, since it uses less digits than its factorization.

51114990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703843.

The product of its (nonzero) digits is 1620, while the sum is 30.

The square root of 51114990 is about 7149.4748058861. The cubic root of 51114990 is about 371.1214816631.

It can be divided in two parts, 5111 and 4990, that added together give a palindrome (10101).

The spelling of 51114990 in words is "fifty-one million, one hundred fourteen thousand, nine hundred ninety".