32550398431 has 4 divisors (see below), whose sum is σ = 32569446600. Its totient is φ = 32531350264.

The previous prime is 32550398407. The next prime is 32550398449. The reversal of 32550398431 is 13489305523.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13489305523 = 59 ⋅228632297.

It is a cyclic number.

It is not a de Polignac number, because 32550398431 - 2¹⁷ = 32550267359 is a prime.

It is a super-2 number, since 2×32550398431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32554398431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9521521 + ... + 9524938.

It is an arithmetic number, because the mean of its divisors is an integer number (8142361650).

Almost surely, 2^32550398431 is an apocalyptic number.

32550398431 is a deficient number, since it is larger than the sum of its proper divisors (19048169).

32550398431 is a wasteful number, since it uses less digits than its factorization.

32550398431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19048168.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 32550398431 in words is "thirty-two billion, five hundred fifty million, three hundred ninety-eight thousand, four hundred thirty-one".