536506240521 has 4 divisors (see below), whose sum is σ = 715341654032. Its totient is φ = 357670827012.

The previous prime is 536506240483. The next prime is 536506240553. The reversal of 536506240521 is 125042605635.

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 de Polignac number, because none of the positive numbers 2^k-536506240521 is a prime.

It is a super-2 number, since 2×536506240521² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 536506240521.

It is not an unprimeable number, because it can be changed into a prime (536506240561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89417706751 + ... + 89417706756.

It is an arithmetic number, because the mean of its divisors is an integer number (178835413508).

Almost surely, 2^536506240521 is an apocalyptic number.

It is an amenable number.

536506240521 is a deficient number, since it is larger than the sum of its proper divisors (178835413511).

536506240521 is a wasteful number, since it uses less digits than its factorization.

536506240521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178835413510.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 536506240521 in words is "five hundred thirty-six billion, five hundred six million, two hundred forty thousand, five hundred twenty-one".