2052521240 has 64 divisors (see below), whose sum is σ = 5757730560. Its totient is φ = 639745920.

The previous prime is 2052521167. The next prime is 2052521243. The reversal of 2052521240 is 421252502.

It is a super-2 number, since 2×2052521240² = 8425686881302275200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2052521243) 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, 330122 + ... + 336281.

It is an arithmetic number, because the mean of its divisors is an integer number (89964540).

Almost surely, 2^2052521240 is an apocalyptic number.

2052521240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2052521240 is an abundant number, since it is smaller than the sum of its proper divisors (3705209320).

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

2052521240 is a wasteful number, since it uses less digits than its factorization.

2052521240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666432 (or 666428 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 2052521240 is about 45304.7595733605. The cubic root of 2052521240 is about 1270.8546626920.

Adding to 2052521240 its reverse (421252502), we get a palindrome (2473773742).

The spelling of 2052521240 in words is "two billion, fifty-two million, five hundred twenty-one thousand, two hundred forty".