52523778 has 16 divisors (see below), whose sum is σ = 111227040. Its totient is φ = 16478016.

The previous prime is 52523777. The next prime is 52523813. The reversal of 52523778 is 87732525.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52523777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257368 + ... + 257571.

It is an arithmetic number, because the mean of its divisors is an integer number (6951690).

Almost surely, 2^52523778 is an apocalyptic number.

52523778 is an abundant number, since it is smaller than the sum of its proper divisors (58703262).

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

52523778 is a wasteful number, since it uses less digits than its factorization.

52523778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514961.

The product of its digits is 117600, while the sum is 39.

The square root of 52523778 is about 7247.3290252341. The cubic root of 52523778 is about 374.5001411167.

It can be divided in two parts, 52523 and 778, that added together give a triangular number (53301 = T₃₂₆).

The spelling of 52523778 in words is "fifty-two million, five hundred twenty-three thousand, seven hundred seventy-eight".