51887774152 has 16 divisors (see below), whose sum is σ = 97292462940. Its totient is φ = 25943117376.

The previous prime is 51887774129. The next prime is 51887774173. The reversal of 51887774152 is 25147778815.

It can be written as a sum of positive squares in 2 ways, for example, as 50280886756 + 1606887396 = 224234^2 + 40086^2 .

It is a super-2 number, since 2×51887774152² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51887774093 and 51887774102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274158 + ... + 423010.

Almost surely, 2^51887774152 is an apocalyptic number.

It is an amenable number.

51887774152 is a deficient number, since it is larger than the sum of its proper divisors (45404688788).

51887774152 is a wasteful number, since it uses less digits than its factorization.

51887774152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192432 (or 192428 counting only the distinct ones).

The product of its digits is 4390400, while the sum is 55.

The spelling of 51887774152 in words is "fifty-one billion, eight hundred eighty-seven million, seven hundred seventy-four thousand, one hundred fifty-two".