61532432 has 60 divisors (see below), whose sum is σ = 134145060. Its totient is φ = 27148800.

The previous prime is 61532423. The next prime is 61532477. The reversal of 61532432 is 23423516.

It can be written as a sum of positive squares in 6 ways, for example, as 9461776 + 52070656 = 3076^2 + 7216^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 609182 + ... + 609282.

It is an arithmetic number, because the mean of its divisors is an integer number (2235751).

Almost surely, 2^61532432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61532432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67072530).

61532432 is an abundant number, since it is smaller than the sum of its proper divisors (72612628).

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

61532432 is a wasteful number, since it uses less digits than its factorization.

61532432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 145 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 61532432 is about 7844.2610869348. The cubic root of 61532432 is about 394.7917120101.

61532432 divided by its sum of digits (26) gives a palindrome (2366632).

Adding to 61532432 its reverse (23423516), we get a palindrome (84955948).

The spelling of 61532432 in words is "sixty-one million, five hundred thirty-two thousand, four hundred thirty-two".