51121376 has 24 divisors (see below), whose sum is σ = 102354840. Its totient is φ = 25126528.

The previous prime is 51121373. The next prime is 51121393. The reversal of 51121376 is 67312115.

It is a super-2 number, since 2×51121376² = 5226790168266752, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51121373) 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, 11651 + ... + 15426.

It is an arithmetic number, because the mean of its divisors is an integer number (4264785).

Almost surely, 2^51121376 is an apocalyptic number.

It is an amenable number.

51121376 is an abundant number, since it is smaller than the sum of its proper divisors (51233464).

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

51121376 is a wasteful number, since it uses less digits than its factorization.

51121376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27146 (or 27138 counting only the distinct ones).

The product of its digits is 1260, while the sum is 26.

The square root of 51121376 is about 7149.9213981694. The cubic root of 51121376 is about 371.1369362495.

The spelling of 51121376 in words is "fifty-one million, one hundred twenty-one thousand, three hundred seventy-six".