51469469 has 8 divisors (see below), whose sum is σ = 53870400. Its totient is φ = 49082176.

The previous prime is 51469459. The next prime is 51469477. The reversal of 51469469 is 96496415.

51469469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51469469 - 2²⁴ = 34692253 is a prime.

It is a super-2 number, since 2×51469469² = 5298212478283922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51469459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4757 + ... + 11205.

It is an arithmetic number, because the mean of its divisors is an integer number (6733800).

Almost surely, 2^51469469 is an apocalyptic number.

It is an amenable number.

51469469 is a deficient number, since it is larger than the sum of its proper divisors (2400931).

51469469 is a wasteful number, since it uses less digits than its factorization.

51469469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6819.

The product of its digits is 233280, while the sum is 44.

The square root of 51469469 is about 7174.2225362753. Note that the first 3 decimals coincide. The cubic root of 51469469 is about 371.9774069024.

The spelling of 51469469 in words is "fifty-one million, four hundred sixty-nine thousand, four hundred sixty-nine".