52718490 has 144 divisors (see below), whose sum is σ = 155361024. Its totient is φ = 12386880.

The previous prime is 52718467. The next prime is 52718531. The reversal of 52718490 is 9481725.

52718490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 71 ways as a sum of consecutive naturals, for example, 511779 + ... + 511881.

It is an arithmetic number, because the mean of its divisors is an integer number (1078896).

Almost surely, 2^52718490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52718490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77680512).

52718490 is an abundant number, since it is smaller than the sum of its proper divisors (102642534).

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

52718490 is a wasteful number, since it uses less digits than its factorization.

52718490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 52718490 is about 7260.7499612643. The cubic root of 52718490 is about 374.9623428853.

The spelling of 52718490 in words is "fifty-two million, seven hundred eighteen thousand, four hundred ninety".