51121335 has 16 divisors (see below), whose sum is σ = 83016576. Its totient is φ = 26857248.

The previous prime is 51121307. The next prime is 51121337. The reversal of 51121335 is 53312115.

It is not a de Polignac number, because 51121335 - 2¹⁴ = 51104951 is a prime.

It is a super-2 number, since 2×51121335² = 5226781784364450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51121337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24429 + ... + 26438.

It is an arithmetic number, because the mean of its divisors is an integer number (5188536).

Almost surely, 2^51121335 is an apocalyptic number.

51121335 is a deficient number, since it is larger than the sum of its proper divisors (31895241).

51121335 is a wasteful number, since it uses less digits than its factorization.

51121335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50942.

The product of its digits is 450, while the sum is 21.

The square root of 51121335 is about 7149.9185310044. The cubic root of 51121335 is about 371.1368370307.

The spelling of 51121335 in words is "fifty-one million, one hundred twenty-one thousand, three hundred thirty-five".