51474770 has 16 divisors (see below), whose sum is σ = 95159448. Its totient is φ = 20033280.

The previous prime is 51474769. The next prime is 51474779. The reversal of 51474770 is 7747415.

It can be written as a sum of positive squares in 4 ways, for example, as 47018449 + 4456321 = 6857^2 + 2111^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51474770.

It is not an unprimeable number, because it can be changed into a prime (51474779) 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 7 ways as a sum of consecutive naturals, for example, 69191 + ... + 69930.

Almost surely, 2^51474770 is an apocalyptic number.

51474770 is a deficient number, since it is larger than the sum of its proper divisors (43684678).

51474770 is a wasteful number, since it uses less digits than its factorization.

51474770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139165.

The product of its (nonzero) digits is 27440, while the sum is 35.

The square root of 51474770 is about 7174.5919744610. The cubic root of 51474770 is about 371.9901768324.

The spelling of 51474770 in words is "fifty-one million, four hundred seventy-four thousand, seven hundred seventy".