2455532521 has 4 divisors (see below), whose sum is σ = 2644419652. Its totient is φ = 2266645392.

The previous prime is 2455532467. The next prime is 2455532551. The reversal of 2455532521 is 1252355542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 714974121 + 1740558400 = 26739^2 + 41720^2 .

It is a cyclic number.

It is not a de Polignac number, because 2455532521 - 2²³ = 2447143913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2455532551) 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 3 ways as a sum of consecutive naturals, for example, 94443546 + ... + 94443571.

It is an arithmetic number, because the mean of its divisors is an integer number (661104913).

Almost surely, 2^2455532521 is an apocalyptic number.

It is an amenable number.

2455532521 is a deficient number, since it is larger than the sum of its proper divisors (188887131).

2455532521 is a wasteful number, since it uses less digits than its factorization.

2455532521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188887130.

The product of its digits is 60000, while the sum is 34.

The square root of 2455532521 is about 49553.3300697340. The cubic root of 2455532521 is about 1349.1137339832.

The spelling of 2455532521 in words is "two billion, four hundred fifty-five million, five hundred thirty-two thousand, five hundred twenty-one".