51121614 has 8 divisors (see below), whose sum is σ = 102243240. Its totient is φ = 17040536.

The previous prime is 51121613. The next prime is 51121649. The reversal of 51121614 is 41612115.

It is a sphenic number, since it is the product of 3 distinct primes.

51121614 is an admirable number.

It is a super-2 number, since 2×51121614² = 5226838835929992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51121613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4260129 + ... + 4260140.

It is an arithmetic number, because the mean of its divisors is an integer number (12780405).

Almost surely, 2^51121614 is an apocalyptic number.

51121614 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51121614 is a wasteful number, since it uses less digits than its factorization.

51121614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8520274.

The product of its digits is 240, while the sum is 21.

The square root of 51121614 is about 7149.9380416896. The cubic root of 51121614 is about 371.1375122021.

Adding to 51121614 its reverse (41612115), we get a palindrome (92733729).

The spelling of 51121614 in words is "fifty-one million, one hundred twenty-one thousand, six hundred fourteen".