52120000 has 70 divisors (see below), whose sum is σ = 129339848. Its totient is φ = 20832000.

The previous prime is 52119997. The next prime is 52120027. The reversal of 52120000 is 2125.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 39349 + ... + 40651.

Almost surely, 2^52120000 is an apocalyptic number.

52120000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64669924).

52120000 is an abundant number, since it is smaller than the sum of its proper divisors (77219848).

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

52120000 is an equidigital number, since it uses as much as digits as its factorization.

52120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335 (or 1310 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 52120000 is about 7219.4182591120. The cubic root of 52120000 is about 373.5380113486.

Adding to 52120000 its reverse (2125), we get a palindrome (52122125).

The spelling of 52120000 in words is "fifty-two million, one hundred twenty thousand".