52778752 has 36 divisors (see below), whose sum is σ = 113462440. Its totient is φ = 24357888.

The previous prime is 52778743. The next prime is 52778783. The reversal of 52778752 is 25787725.

It is a junction number, because it is equal to n+sod(n) for n = 52778699 and 52778708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4602 + ... + 11257.

Almost surely, 2^52778752 is an apocalyptic number.

52778752 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

52778752 is an abundant number, since it is smaller than the sum of its proper divisors (60683688).

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

52778752 is a wasteful number, since it uses less digits than its factorization.

52778752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15888 (or 15874 counting only the distinct ones).

The product of its digits is 274400, while the sum is 43.

The square root of 52778752 is about 7264.8986228302. The cubic root of 52778752 is about 375.1051604333.

The spelling of 52778752 in words is "fifty-two million, seven hundred seventy-eight thousand, seven hundred fifty-two".