51469121 has 4 divisors (see below), whose sum is σ = 56148144. Its totient is φ = 46790100.

The previous prime is 51469111. The next prime is 51469139. The reversal of 51469121 is 12196415.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51469121 - 2¹⁰ = 51468097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51469111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2339495 + ... + 2339516.

It is an arithmetic number, because the mean of its divisors is an integer number (14037036).

Almost surely, 2^51469121 is an apocalyptic number.

It is an amenable number.

51469121 is a deficient number, since it is larger than the sum of its proper divisors (4679023).

51469121 is a wasteful number, since it uses less digits than its factorization.

51469121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4679022.

The product of its digits is 2160, while the sum is 29.

The square root of 51469121 is about 7174.1982827352. The cubic root of 51469121 is about 371.9765685515.

The spelling of 51469121 in words is "fifty-one million, four hundred sixty-nine thousand, one hundred twenty-one".