52057278 has 96 divisors (see below), whose sum is σ = 141365952. Its totient is φ = 13478400.

The previous prime is 52057267. The next prime is 52057297. The reversal of 52057278 is 87275025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99658 + ... + 100178.

It is an arithmetic number, because the mean of its divisors is an integer number (1472562).

Almost surely, 2^52057278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52057278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70682976).

52057278 is an abundant number, since it is smaller than the sum of its proper divisors (89308674).

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

52057278 is a wasteful number, since it uses less digits than its factorization.

52057278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 52057278 is about 7215.0729726040. The cubic root of 52057278 is about 373.3881107620.

The spelling of 52057278 in words is "fifty-two million, fifty-seven thousand, two hundred seventy-eight".