52752778 has 16 divisors (see below), whose sum is σ = 89701920. Its totient is φ = 23065776.

The previous prime is 52752737. The next prime is 52752781. The reversal of 52752778 is 87725725.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52900 + ... + 53887.

It is an arithmetic number, because the mean of its divisors is an integer number (5606370).

Almost surely, 2^52752778 is an apocalyptic number.

52752778 is a deficient number, since it is larger than the sum of its proper divisors (36949142).

52752778 is a wasteful number, since it uses less digits than its factorization.

52752778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106821.

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

The square root of 52752778 is about 7263.1107660561. The cubic root of 52752778 is about 375.0436168526.

The spelling of 52752778 in words is "fifty-two million, seven hundred fifty-two thousand, seven hundred seventy-eight".