51541777 has 12 divisors (see below), whose sum is σ = 61579380. Its totient is φ = 42983136.

The previous prime is 51541759. The next prime is 51541783. The reversal of 51541777 is 77714515.

It can be written as a sum of positive squares in 2 ways, for example, as 33189121 + 18352656 = 5761^2 + 4284^2 .

It is not a de Polignac number, because 51541777 - 2¹¹ = 51539729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51541757) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12402 + ... + 16027.

It is an arithmetic number, because the mean of its divisors is an integer number (5131615).

Almost surely, 2^51541777 is an apocalyptic number.

It is an amenable number.

51541777 is a deficient number, since it is larger than the sum of its proper divisors (10037603).

51541777 is a wasteful number, since it uses less digits than its factorization.

51541777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28480 (or 28473 counting only the distinct ones).

The product of its digits is 34300, while the sum is 37.

The square root of 51541777 is about 7179.2601986556. The cubic root of 51541777 is about 372.1515189025.

The spelling of 51541777 in words is "fifty-one million, five hundred forty-one thousand, seven hundred seventy-seven".