150256047521 has 4 divisors (see below), whose sum is σ = 150257867412. Its totient is φ = 150254227632.

The previous prime is 150256047503. The next prime is 150256047647. The reversal of 150256047521 is 125740652051.

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 115847652496 + 34408395025 = 340364^2 + 185495^2 .

It is a cyclic number.

It is not a de Polignac number, because 150256047521 - 2²² = 150251853217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150256007521) 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, 779906 + ... + 953291.

It is an arithmetic number, because the mean of its divisors is an integer number (37564466853).

Almost surely, 2^150256047521 is an apocalyptic number.

It is an amenable number.

150256047521 is a deficient number, since it is larger than the sum of its proper divisors (1819891).

150256047521 is an equidigital number, since it uses as much as digits as its factorization.

150256047521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819890.

The product of its (nonzero) digits is 84000, while the sum is 38.

Adding to 150256047521 its reverse (125740652051), we get a palindrome (275996699572).

The spelling of 150256047521 in words is "one hundred fifty billion, two hundred fifty-six million, forty-seven thousand, five hundred twenty-one".