32420015251 has 8 divisors (see below), whose sum is σ = 35066328080. Its totient is φ = 29795483232.

The previous prime is 32420015207. The next prime is 32420015281. The reversal of 32420015251 is 15251002423.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32420015251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32420015281) 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, 5442105 + ... + 5448058.

It is an arithmetic number, because the mean of its divisors is an integer number (4383291010).

Almost surely, 2^32420015251 is an apocalyptic number.

32420015251 is a deficient number, since it is larger than the sum of its proper divisors (2646312829).

32420015251 is a wasteful number, since it uses less digits than its factorization.

32420015251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10890405.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 32420015251 its reverse (15251002423), we get a palindrome (47671017674).

The spelling of 32420015251 in words is "thirty-two billion, four hundred twenty million, fifteen thousand, two hundred fifty-one".