52558278 has 16 divisors (see below), whose sum is σ = 107958000. Its totient is φ = 17045856.

The previous prime is 52558277. The next prime is 52558291. The reversal of 52558278 is 87285525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52558277) 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, 118153 + ... + 118596.

It is an arithmetic number, because the mean of its divisors is an integer number (6747375).

Almost surely, 2^52558278 is an apocalyptic number.

52558278 is an abundant number, since it is smaller than the sum of its proper divisors (55399722).

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

52558278 is a wasteful number, since it uses less digits than its factorization.

52558278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236791.

The product of its digits is 224000, while the sum is 42.

The square root of 52558278 is about 7249.7088217390. The cubic root of 52558278 is about 374.5821193973.

The spelling of 52558278 in words is "fifty-two million, five hundred fifty-eight thousand, two hundred seventy-eight".