32130556 has 6 divisors (see below), whose sum is σ = 56228480. Its totient is φ = 16065276.

The previous prime is 32130551. The next prime is 32130557. The reversal of 32130556 is 65503123.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 32130556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32130551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4016316 + ... + 4016323.

Almost surely, 2^32130556 is an apocalyptic number.

It is an amenable number.

32130556 is a deficient number, since it is larger than the sum of its proper divisors (24097924).

32130556 is a wasteful number, since it uses less digits than its factorization.

32130556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8032643 (or 8032641 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 32130556 is about 5668.3821324960. The cubic root of 32130556 is about 317.9113844033.

Adding to 32130556 its reverse (65503123), we get a palindrome (97633679).

The spelling of 32130556 in words is "thirty-two million, one hundred thirty thousand, five hundred fifty-six".