51886885550 has 24 divisors (see below), whose sum is σ = 99837527400. Its totient is φ = 20039072480.

The previous prime is 51886885537. The next prime is 51886885553. The reversal of 51886885550 is 5558868815.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 51886885550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51886885553) 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, 17890580 + ... + 17893479.

It is an arithmetic number, because the mean of its divisors is an integer number (4159896975).

Almost surely, 2^51886885550 is an apocalyptic number.

51886885550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51886885550 is a deficient number, since it is larger than the sum of its proper divisors (47950641850).

51886885550 is a wasteful number, since it uses less digits than its factorization.

51886885550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35784100 (or 35784095 counting only the distinct ones).

The product of its (nonzero) digits is 15360000, while the sum is 59.

The spelling of 51886885550 in words is "fifty-one billion, eight hundred eighty-six million, eight hundred eighty-five thousand, five hundred fifty".