45915059521 has 4 divisors (see below), whose sum is σ = 45977191600. Its totient is φ = 45852927444.

The previous prime is 45915059507. The next prime is 45915059621. The reversal of 45915059521 is 12595051954.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12595051954 = 2 ⋅6297525977.

It is a cyclic number.

It is not a de Polignac number, because 45915059521 - 2⁹ = 45915059009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45915059621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31064931 + ... + 31066408.

It is an arithmetic number, because the mean of its divisors is an integer number (11494297900).

Almost surely, 2^45915059521 is an apocalyptic number.

It is an amenable number.

45915059521 is a deficient number, since it is larger than the sum of its proper divisors (62132079).

45915059521 is an equidigital number, since it uses as much as digits as its factorization.

45915059521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62132078.

The product of its (nonzero) digits is 405000, while the sum is 46.

It can be divided in two parts, 459150 and 59521, that added together give a triangular number (518671 = T₁₀₁₈).

The spelling of 45915059521 in words is "forty-five billion, nine hundred fifteen million, fifty-nine thousand, five hundred twenty-one".