152502402516421 has 4 divisors (see below), whose sum is σ = 157761106051500. Its totient is φ = 147243698981344.

The previous prime is 152502402516407. The next prime is 152502402516427. The reversal of 152502402516421 is 124615204205251.

152502402516421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 103589933391396 + 48912469125025 = 10177914^2 + 6993745^2 .

It is a cyclic number.

It is not a de Polignac number, because 152502402516421 - 2²⁹ = 152501865645509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152502402516427) 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, 2629351767496 + ... + 2629351767553.

It is an arithmetic number, because the mean of its divisors is an integer number (39440276512875).

Almost surely, 2^{152502402516421} is an apocalyptic number.

It is an amenable number.

152502402516421 is a deficient number, since it is larger than the sum of its proper divisors (5258703535079).

152502402516421 is an equidigital number, since it uses as much as digits as its factorization.

152502402516421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5258703535078.

The product of its (nonzero) digits is 192000, while the sum is 40.

The spelling of 152502402516421 in words is "one hundred fifty-two trillion, five hundred two billion, four hundred two million, five hundred sixteen thousand, four hundred twenty-one".