52776144 has 40 divisors (see below), whose sum is σ = 151488320. Its totient is φ = 17591904.

The previous prime is 52776127. The next prime is 52776169. The reversal of 52776144 is 44167725.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 52776099 and 52776108.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 60652 + ... + 61515.

It is an arithmetic number, because the mean of its divisors is an integer number (3787208).

Almost surely, 2^52776144 is an apocalyptic number.

52776144 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

52776144 is an abundant number, since it is smaller than the sum of its proper divisors (98712176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52776144 is a wasteful number, since it uses less digits than its factorization.

52776144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122184 (or 122172 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 52776144 is about 7264.7191273992. The cubic root of 52776144 is about 375.0989818713.

The spelling of 52776144 in words is "fifty-two million, seven hundred seventy-six thousand, one hundred forty-four".