51469977 has 8 divisors (see below), whose sum is σ = 73905664. Its totient is φ = 31673808.

The previous prime is 51469973. The next prime is 51470009. The reversal of 51469977 is 77996415.

It is a happy number.

51469977 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 not a de Polignac number, because 51469977 - 2² = 51469973 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51469973) 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, 659833 + ... + 659910.

It is an arithmetic number, because the mean of its divisors is an integer number (9238208).

Almost surely, 2^51469977 is an apocalyptic number.

It is an amenable number.

51469977 is a deficient number, since it is larger than the sum of its proper divisors (22435687).

51469977 is a wasteful number, since it uses less digits than its factorization.

51469977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319759.

The product of its digits is 476280, while the sum is 48.

The square root of 51469977 is about 7174.2579407211. The cubic root of 51469977 is about 371.9786306952.

The spelling of 51469977 in words is "fifty-one million, four hundred sixty-nine thousand, nine hundred seventy-seven".