51202377 has 6 divisors (see below), whose sum is σ = 73959002. Its totient is φ = 34134912.

The previous prime is 51202357. The next prime is 51202387. The reversal of 51202377 is 77320215.

It can be written as a sum of positive squares in only one way, i.e., 39237696 + 11964681 = 6264^2 + 3459^2 .

It is not a de Polignac number, because 51202377 - 2¹¹ = 51200329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51202377.

It is not an unprimeable number, because it can be changed into a prime (51202357) 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 5 ways as a sum of consecutive naturals, for example, 2844568 + ... + 2844585.

Almost surely, 2^51202377 is an apocalyptic number.

It is an amenable number.

51202377 is a deficient number, since it is larger than the sum of its proper divisors (22756625).

51202377 is a wasteful number, since it uses less digits than its factorization.

51202377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5689159 (or 5689156 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 51202377 is about 7155.5836239960. The cubic root of 51202377 is about 371.3328529838.

The spelling of 51202377 in words is "fifty-one million, two hundred two thousand, three hundred seventy-seven".