52506090 has 128 divisors (see below), whose sum is σ = 172408320. Its totient is φ = 11073024.

The previous prime is 52506061. The next prime is 52506119. The reversal of 52506090 is 9060525.

52506090 is a `hidden beast` number, since 5 + 2 + 50 + 609 + 0 = 666.

52506090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (52506061) and next prime (52506119).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23502 + ... + 25638.

It is an arithmetic number, because the mean of its divisors is an integer number (1346940).

Almost surely, 2^52506090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52506090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86204160).

52506090 is an abundant number, since it is smaller than the sum of its proper divisors (119902230).

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

52506090 is a wasteful number, since it uses less digits than its factorization.

52506090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173 (or 2167 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 52506090 is about 7246.1086108338. The cubic root of 52506090 is about 374.4580972877.

The spelling of 52506090 in words is "fifty-two million, five hundred six thousand, ninety".