32151255551 has 4 divisors (see below), whose sum is σ = 32151693504. Its totient is φ = 32150817600.

The previous prime is 32151255529. The next prime is 32151255553. The reversal of 32151255551 is 15555215123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32151255551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32151255553) 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, 79055 + ... + 265616.

It is an arithmetic number, because the mean of its divisors is an integer number (8037923376).

Almost surely, 2^32151255551 is an apocalyptic number.

32151255551 is a deficient number, since it is larger than the sum of its proper divisors (437953).

32151255551 is an equidigital number, since it uses as much as digits as its factorization.

32151255551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437952.

The product of its digits is 37500, while the sum is 35.

The spelling of 32151255551 in words is "thirty-two billion, one hundred fifty-one million, two hundred fifty-five thousand, five hundred fifty-one".