61306532 has 24 divisors (see below), whose sum is σ = 123017664. Its totient is φ = 26187552.

The previous prime is 61306517. The next prime is 61306537. The reversal of 61306532 is 23560316.

It is not an unprimeable number, because it can be changed into a prime (61306537) 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, 5423 + ... + 12329.

It is an arithmetic number, because the mean of its divisors is an integer number (5125736).

Almost surely, 2^61306532 is an apocalyptic number.

It is an amenable number.

61306532 is an abundant number, since it is smaller than the sum of its proper divisors (61711132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61306532 is a wasteful number, since it uses less digits than its factorization.

61306532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7235 (or 7233 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 61306532 is about 7829.8487852576. The cubic root of 61306532 is about 394.3079952352.

Adding to 61306532 its reverse (23560316), we get a palindrome (84866848).

The spelling of 61306532 in words is "sixty-one million, three hundred six thousand, five hundred thirty-two".