150520052231993 has 4 divisors (see below), whose sum is σ = 159374172951540. Its totient is φ = 141665931512448.

The previous prime is 150520052231911. The next prime is 150520052232157. The reversal of 150520052231993 is 399132250025051.

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 58962003683584 + 91558048548409 = 7678672^2 + 9568597^2 .

It is a cyclic number.

It is not a de Polignac number, because 150520052231993 - 2¹⁴ = 150520052215609 is a prime.

It is a super-2 number, since 2×150520052231993² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150520052221993) 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, 4427060359748 + ... + 4427060359781.

It is an arithmetic number, because the mean of its divisors is an integer number (39843543237885).

Almost surely, 2^{150520052231993} is an apocalyptic number.

It is an amenable number.

150520052231993 is a deficient number, since it is larger than the sum of its proper divisors (8854120719547).

150520052231993 is an equidigital number, since it uses as much as digits as its factorization.

150520052231993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8854120719546.

The product of its (nonzero) digits is 729000, while the sum is 47.

The spelling of 150520052231993 in words is "one hundred fifty trillion, five hundred twenty billion, fifty-two million, two hundred thirty-one thousand, nine hundred ninety-three".