61530332 has 12 divisors (see below), whose sum is σ = 109969440. Its totient is φ = 30110496.

The previous prime is 61530331. The next prime is 61530349. The reversal of 61530332 is 23303516.

It is a junction number, because it is equal to n+sod(n) for n = 61530298 and 61530307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61530331) 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, 163457 + ... + 163832.

It is an arithmetic number, because the mean of its divisors is an integer number (9164120).

Almost surely, 2^61530332 is an apocalyptic number.

It is an amenable number.

61530332 is a deficient number, since it is larger than the sum of its proper divisors (48439108).

61530332 is a wasteful number, since it uses less digits than its factorization.

61530332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327340 (or 327338 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 61530332 is about 7844.1272299728. The cubic root of 61530332 is about 394.7872207632.

Adding to 61530332 its reverse (23303516), we get a palindrome (84833848).

The spelling of 61530332 in words is "sixty-one million, five hundred thirty thousand, three hundred thirty-two".