152253452521 has 4 divisors (see below), whose sum is σ = 158873167872. Its totient is φ = 145633737172.

The previous prime is 152253452413. The next prime is 152253452591. The reversal of 152253452521 is 125254352251.

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 152253452521 - 2⁹ = 152253452009 is a prime.

It is a super-2 number, since 2×152253452521² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152253452591) 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, 3309857641 + ... + 3309857686.

It is an arithmetic number, because the mean of its divisors is an integer number (39718291968).

Almost surely, 2^152253452521 is an apocalyptic number.

It is an amenable number.

152253452521 is a deficient number, since it is larger than the sum of its proper divisors (6619715351).

152253452521 is an equidigital number, since it uses as much as digits as its factorization.

152253452521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6619715350.

The product of its digits is 120000, while the sum is 37.

The spelling of 152253452521 in words is "one hundred fifty-two billion, two hundred fifty-three million, four hundred fifty-two thousand, five hundred twenty-one".