2532247521 has 4 divisors (see below), whose sum is σ = 3376330032. Its totient is φ = 1688165012.

The previous prime is 2532247499. The next prime is 2532247547. The reversal of 2532247521 is 1257422352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2532247521 - 2⁵ = 2532247489 is a prime.

It is a super-3 number, since 3×2532247521³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2532747521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422041251 + ... + 422041256.

It is an arithmetic number, because the mean of its divisors is an integer number (844082508).

Almost surely, 2^2532247521 is an apocalyptic number.

It is an amenable number.

2532247521 is a deficient number, since it is larger than the sum of its proper divisors (844082511).

2532247521 is an equidigital number, since it uses as much as digits as its factorization.

2532247521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844082510.

The product of its digits is 33600, while the sum is 33.

The square root of 2532247521 is about 50321.4419606593. The cubic root of 2532247521 is about 1363.0194449102.

Adding to 2532247521 its reverse (1257422352), we get a palindrome (3789669873).

The spelling of 2532247521 in words is "two billion, five hundred thirty-two million, two hundred forty-seven thousand, five hundred twenty-one".