32513052465 has 24 divisors (see below), whose sum is σ = 56872993320. Its totient is φ = 17181206784.

The previous prime is 32513052463. The next prime is 32513052499. The reversal of 32513052465 is 56425031523.

32513052465 is a `hidden beast` number, since 32 + 513 + 0 + 52 + 4 + 65 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 38489616 + 32474562849 = 6204^2 + 180207^2 .

It is not a de Polignac number, because 32513052465 - 2¹ = 32513052463 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (32513052461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3309372 + ... + 3319181.

It is an arithmetic number, because the mean of its divisors is an integer number (2369708055).

Almost surely, 2^32513052465 is an apocalyptic number.

It is an amenable number.

32513052465 is a deficient number, since it is larger than the sum of its proper divisors (24359940855).

32513052465 is a wasteful number, since it uses less digits than its factorization.

32513052465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6628673 (or 6628670 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 32513052465 its reverse (56425031523), we get a palindrome (88938083988).

The spelling of 32513052465 in words is "thirty-two billion, five hundred thirteen million, fifty-two thousand, four hundred sixty-five".