51474771 has 20 divisors (see below), whose sum is σ = 77341264. Its totient is φ = 34117200.

The previous prime is 51474769. The next prime is 51474779. The reversal of 51474771 is 17747415.

51474771 is a `hidden beast` number, since 514 + 74 + 7 + 71 = 666.

It is not a de Polignac number, because 51474771 - 2¹ = 51474769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51474779) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12906 + ... + 16416.

Almost surely, 2^51474771 is an apocalyptic number.

51474771 is a deficient number, since it is larger than the sum of its proper divisors (25866493).

51474771 is a wasteful number, since it uses less digits than its factorization.

51474771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3704 (or 3695 counting only the distinct ones).

The product of its digits is 27440, while the sum is 36.

The square root of 51474771 is about 7174.5920441514. The cubic root of 51474771 is about 371.9901792413.

The spelling of 51474771 in words is "fifty-one million, four hundred seventy-four thousand, seven hundred seventy-one".