51775854 has 24 divisors (see below), whose sum is σ = 112132152. Its totient is φ = 15930720.

The previous prime is 51775849. The next prime is 51775873. The reversal of 51775854 is 45857715.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24517 + ... + 26544.

It is an arithmetic number, because the mean of its divisors is an integer number (4672173).

Almost surely, 2^51775854 is an apocalyptic number.

51775854 is an abundant number, since it is smaller than the sum of its proper divisors (60356298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51775854 is a wasteful number, since it uses less digits than its factorization.

51775854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51092 (or 51079 counting only the distinct ones).

The product of its digits is 196000, while the sum is 42.

The square root of 51775854 is about 7195.5440378056. The cubic root of 51775854 is about 372.7140436132.

The spelling of 51775854 in words is "fifty-one million, seven hundred seventy-five thousand, eight hundred fifty-four".