45212436505 has 8 divisors (see below), whose sum is σ = 54267402312. Its totient is φ = 36161630208.

The previous prime is 45212436487. The next prime is 45212436509. The reversal of 45212436505 is 50563421254.

It can be written as a sum of positive squares in 4 ways, for example, as 31562720281 + 13649716224 = 177659^2 + 116832^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45212436505 - 2¹¹ = 45212434457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45212436509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1015912 + ... + 1059481.

It is an arithmetic number, because the mean of its divisors is an integer number (6783425289).

Almost surely, 2^45212436505 is an apocalyptic number.

It is an amenable number.

45212436505 is a deficient number, since it is larger than the sum of its proper divisors (9054965807).

45212436505 is a wasteful number, since it uses less digits than its factorization.

45212436505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079755.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 45212436505 its reverse (50563421254), we get a palindrome (95775857759).

The spelling of 45212436505 in words is "forty-five billion, two hundred twelve million, four hundred thirty-six thousand, five hundred five".