51121062 has 12 divisors (see below), whose sum is σ = 110762340. Its totient is φ = 17040348.

The previous prime is 51121061. The next prime is 51121073. The reversal of 51121062 is 26012115.

It is a super-2 number, since 2×51121062² = 5226725960015688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 2840059 = 51121062 / (5 + 1 + 1 + 2 + 1 + 0 + 6 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51121061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1420012 + ... + 1420047.

It is an arithmetic number, because the mean of its divisors is an integer number (9230195).

Almost surely, 2^51121062 is an apocalyptic number.

51121062 is an abundant number, since it is smaller than the sum of its proper divisors (59641278).

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

51121062 is a wasteful number, since it uses less digits than its factorization.

51121062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840067 (or 2840064 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 51121062 is about 7149.8994398523. The cubic root of 51121062 is about 371.1361763767.

Adding to 51121062 its reverse (26012115), we get a palindrome (77133177).

The spelling of 51121062 in words is "fifty-one million, one hundred twenty-one thousand, sixty-two".