52090764 has 48 divisors (see below), whose sum is σ = 133101696. Its totient is φ = 15724800.

The previous prime is 52090763. The next prime is 52090781. The reversal of 52090764 is 46709025.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (52090763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43899 + ... + 45069.

It is an arithmetic number, because the mean of its divisors is an integer number (2772952).

Almost surely, 2^52090764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52090764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66550848).

52090764 is an abundant number, since it is smaller than the sum of its proper divisors (81010932).

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

52090764 is a wasteful number, since it uses less digits than its factorization.

52090764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526 (or 1524 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 52090764 is about 7217.3931581978. The cubic root of 52090764 is about 373.4681546085.

Adding to 52090764 its reverse (46709025), we get a palindrome (98799789).

The spelling of 52090764 in words is "fifty-two million, ninety thousand, seven hundred sixty-four".