51011469 has 6 divisors (see below), whose sum is σ = 73683246. Its totient is φ = 34007640.

The previous prime is 51011453. The next prime is 51011479. The reversal of 51011469 is 96411015.

51011469 is a `hidden beast` number, since 510 + 1 + 146 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 48483369 + 2528100 = 6963^2 + 1590^2 .

It is not a de Polignac number, because 51011469 - 2⁴ = 51011453 is a prime.

It is a super-2 number, since 2×51011469² = 5204339939075922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51011479) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2833962 + ... + 2833979.

It is an arithmetic number, because the mean of its divisors is an integer number (12280541).

Almost surely, 2^51011469 is an apocalyptic number.

It is an amenable number.

51011469 is a deficient number, since it is larger than the sum of its proper divisors (22671777).

51011469 is a wasteful number, since it uses less digits than its factorization.

51011469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5667947 (or 5667944 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 51011469 is about 7142.2313740175. The cubic root of 51011469 is about 370.8707735235.

The spelling of 51011469 in words is "fifty-one million, eleven thousand, four hundred sixty-nine".