2523209652 has 36 divisors (see below), whose sum is σ = 6713805280. Its totient is φ = 796802832.

The previous prime is 2523209651. The next prime is 2523209669. The reversal of 2523209652 is 2569023252.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2523209652² = 12733173895891922208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2523209651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1843768 + ... + 1845135.

Almost surely, 2^2523209652 is an apocalyptic number.

It is an amenable number.

2523209652 is an abundant number, since it is smaller than the sum of its proper divisors (4190595628).

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

2523209652 is a wasteful number, since it uses less digits than its factorization.

2523209652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688932 (or 3688927 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 2523209652 is about 50231.5603181904. The cubic root of 2523209652 is about 1361.3959232599.

The spelling of 2523209652 in words is "two billion, five hundred twenty-three million, two hundred nine thousand, six hundred fifty-two".