61013532 has 12 divisors (see below), whose sum is σ = 142364936. Its totient is φ = 20337840.

The previous prime is 61013531. The next prime is 61013543. The reversal of 61013532 is 23531016.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 61013499 and 61013508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61013531) 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, 2542219 + ... + 2542242.

Almost surely, 2^61013532 is an apocalyptic number.

It is an amenable number.

61013532 is an abundant number, since it is smaller than the sum of its proper divisors (81351404).

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

61013532 is a wasteful number, since it uses less digits than its factorization.

61013532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084468 (or 5084466 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 61013532 is about 7811.1159253976. The cubic root of 61013532 is about 393.6788247263.

Adding to 61013532 its reverse (23531016), we get a palindrome (84544548).

The spelling of 61013532 in words is "sixty-one million, thirteen thousand, five hundred thirty-two".