51777136 has 10 divisors (see below), whose sum is σ = 100318232. Its totient is φ = 25888560.

The previous prime is 51777133. The next prime is 51777139. The reversal of 51777136 is 63177715.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51777133) and next prime (51777139).

It is a junction number, because it is equal to n+sod(n) for n = 51777095 and 51777104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51777133) 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 as a sum of consecutive naturals, namely, 1618020 + ... + 1618051.

Almost surely, 2^51777136 is an apocalyptic number.

It is an amenable number.

51777136 is a deficient number, since it is larger than the sum of its proper divisors (48541096).

51777136 is a wasteful number, since it uses less digits than its factorization.

51777136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3236079 (or 3236073 counting only the distinct ones).

The product of its digits is 30870, while the sum is 37.

The square root of 51777136 is about 7195.6331201639. The cubic root of 51777136 is about 372.7171197927.

The spelling of 51777136 in words is "fifty-one million, seven hundred seventy-seven thousand, one hundred thirty-six".