51411730 has 16 divisors (see below), whose sum is σ = 92625624. Its totient is φ = 20545920.

The previous prime is 51411707. The next prime is 51411743. The reversal of 51411730 is 3711415.

It can be written as a sum of positive squares in 4 ways, for example, as 31618129 + 19793601 = 5623^2 + 4449^2 .

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, 15934 + ... + 18886.

Almost surely, 2^51411730 is an apocalyptic number.

51411730 is a deficient number, since it is larger than the sum of its proper divisors (41213894).

51411730 is a wasteful number, since it uses less digits than its factorization.

51411730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4701.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 51411730 is about 7170.1973473538. The cubic root of 51411730 is about 371.8382587809.

The spelling of 51411730 in words is "fifty-one million, four hundred eleven thousand, seven hundred thirty".