32257605312564 has 24 divisors (see below), whose sum is σ = 75422299635648. Its totient is φ = 10730455974720.

The previous prime is 32257605312497. The next prime is 32257605312617. The reversal of 32257605312564 is 46521350675223.

It is a super-2 number, since 2×32257605312564² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2759885097 + ... + 2759896784.

It is an arithmetic number, because the mean of its divisors is an integer number (3142595818152).

Almost surely, 2^{32257605312564} is an apocalyptic number.

It is an amenable number.

32257605312564 is an abundant number, since it is smaller than the sum of its proper divisors (43164694323084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32257605312564 is a wasteful number, since it uses less digits than its factorization.

32257605312564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5519782375 (or 5519782373 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 51.

Adding to 32257605312564 its reverse (46521350675223), we get a palindrome (78778955987787).

The spelling of 32257605312564 in words is "thirty-two trillion, two hundred fifty-seven billion, six hundred five million, three hundred twelve thousand, five hundred sixty-four".