52991874 has 128 divisors (see below), whose sum is σ = 139104000. Its totient is φ = 14805504.

The previous prime is 52991863. The next prime is 52991879. The reversal of 52991874 is 47819925.

It is not an unprimeable number, because it can be changed into a prime (52991879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 386734 + ... + 386870.

It is an arithmetic number, because the mean of its divisors is an integer number (1086750).

Almost surely, 2^52991874 is an apocalyptic number.

52991874 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 52991874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69552000).

52991874 is an abundant number, since it is smaller than the sum of its proper divisors (86112126).

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

52991874 is a wasteful number, since it uses less digits than its factorization.

52991874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 203 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 52991874 is about 7279.5517719156. The cubic root of 52991874 is about 375.6093772220.

The spelling of 52991874 in words is "fifty-two million, nine hundred ninety-one thousand, eight hundred seventy-four".