51255476 has 24 divisors (see below), whose sum is σ = 95598216. Its totient is φ = 23961600.

The previous prime is 51255439. The next prime is 51255517. The reversal of 51255476 is 67455215.

It can be written as a sum of positive squares in 4 ways, for example, as 10627600 + 40627876 = 3260^2 + 6374^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8276 + ... + 13076.

It is an arithmetic number, because the mean of its divisors is an integer number (3983259).

Almost surely, 2^51255476 is an apocalyptic number.

It is an amenable number.

51255476 is a deficient number, since it is larger than the sum of its proper divisors (44342740).

51255476 is a wasteful number, since it uses less digits than its factorization.

51255476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979 (or 4977 counting only the distinct ones).

The product of its digits is 42000, while the sum is 35.

The square root of 51255476 is about 7159.2929818523. The cubic root of 51255476 is about 371.4611711877.

It can be divided in two parts, 5125 and 5476, that added together give a palindrome (10601).

The spelling of 51255476 in words is "fifty-one million, two hundred fifty-five thousand, four hundred seventy-six".