52690000 has 100 divisors (see below), whose sum is σ = 139455360. Its totient is φ = 19120000.

The previous prime is 52689997. The next prime is 52690019. The reversal of 52690000 is 9625.

52690000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×52690000² = 5552472200000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 19 ways as a sum of consecutive naturals, for example, 109761 + ... + 110239.

Almost surely, 2^52690000 is an apocalyptic number.

52690000 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 52690000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69727680).

52690000 is an abundant number, since it is smaller than the sum of its proper divisors (86765360).

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

52690000 is a wasteful number, since it uses less digits than its factorization.

52690000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 52690000 is about 7258.7877775838. The cubic root of 52690000 is about 374.8947852972.

Adding to 52690000 its reverse (9625), we get a palindrome (52699625).

The spelling of 52690000 in words is "fifty-two million, six hundred ninety thousand".