51776901 has 20 divisors (see below), whose sum is σ = 84378624. Its totient is φ = 31379400.

The previous prime is 51776899. The next prime is 51776903. The reversal of 51776901 is 10967715.

It is an interprime number because it is at equal distance from previous prime (51776899) and next prime (51776903).

It is not a de Polignac number, because 51776901 - 2¹ = 51776899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51776903) 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 19 ways as a sum of consecutive naturals, for example, 28165 + ... + 29946.

Almost surely, 2^51776901 is an apocalyptic number.

It is an amenable number.

51776901 is a deficient number, since it is larger than the sum of its proper divisors (32601723).

51776901 is a wasteful number, since it uses less digits than its factorization.

51776901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58134 (or 58125 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 36.

The square root of 51776901 is about 7195.6167907970. The cubic root of 51776901 is about 372.7165559102.

The spelling of 51776901 in words is "fifty-one million, seven hundred seventy-six thousand, nine hundred one".