51151269 has 16 divisors (see below), whose sum is σ = 73592064. Its totient is φ = 31416000.

The previous prime is 51151229. The next prime is 51151297. The reversal of 51151269 is 96215115.

It is not a de Polignac number, because 51151269 - 2⁸ = 51151013 is a prime.

It is a super-2 number, since 2×51151269² = 5232904640620722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51151229) 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, 26404 + ... + 28274.

It is an arithmetic number, because the mean of its divisors is an integer number (4599504).

Almost surely, 2^51151269 is an apocalyptic number.

It is an amenable number.

51151269 is a deficient number, since it is larger than the sum of its proper divisors (22440795).

51151269 is a wasteful number, since it uses less digits than its factorization.

51151269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2588.

The product of its digits is 2700, while the sum is 30.

The square root of 51151269 is about 7152.0115352256. The cubic root of 51151269 is about 371.2092623848.

The spelling of 51151269 in words is "fifty-one million, one hundred fifty-one thousand, two hundred sixty-nine".