51474923 has 4 divisors (see below), whose sum is σ = 51947280. Its totient is φ = 51002568.

The previous prime is 51474919. The next prime is 51474931. The reversal of 51474923 is 32947415.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51474923 - 2² = 51474919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51444923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236015 + ... + 236232.

It is an arithmetic number, because the mean of its divisors is an integer number (12986820).

Almost surely, 2^51474923 is an apocalyptic number.

51474923 is a deficient number, since it is larger than the sum of its proper divisors (472357).

51474923 is a wasteful number, since it uses less digits than its factorization.

51474923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472356.

The product of its digits is 30240, while the sum is 35.

The square root of 51474923 is about 7174.6026370803. The cubic root of 51474923 is about 371.9905453912.

The spelling of 51474923 in words is "fifty-one million, four hundred seventy-four thousand, nine hundred twenty-three".