32225631 has 32 divisors (see below), whose sum is σ = 46296768. Its totient is φ = 19906560.

The previous prime is 32225587. The next prime is 32225651. The reversal of 32225631 is 13652223.

It is not a de Polignac number, because 32225631 - 2¹⁵ = 32192863 is a prime.

It is a super-2 number, since 2×32225631² = 2076982586696322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32225651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 332175 + ... + 332271.

It is an arithmetic number, because the mean of its divisors is an integer number (1446774).

Almost surely, 2^32225631 is an apocalyptic number.

32225631 is a deficient number, since it is larger than the sum of its proper divisors (14071137).

32225631 is a wasteful number, since it uses less digits than its factorization.

32225631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251.

The product of its digits is 2160, while the sum is 24.

The square root of 32225631 is about 5676.7623695201. The cubic root of 32225631 is about 318.2246444791.

Adding to 32225631 its reverse (13652223), we get a palindrome (45877854).

The spelling of 32225631 in words is "thirty-two million, two hundred twenty-five thousand, six hundred thirty-one".