61501332 has 24 divisors (see below), whose sum is σ = 145470976. Its totient is φ = 20219328.

The previous prime is 61501331. The next prime is 61501339. The reversal of 61501332 is 23310516.

It is a junction number, because it is equal to n+sod(n) for n = 61501299 and 61501308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61501331) 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, 34228 + ... + 35979.

Almost surely, 2^61501332 is an apocalyptic number.

It is an amenable number.

61501332 is an abundant number, since it is smaller than the sum of its proper divisors (83969644).

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

61501332 is a wasteful number, since it uses less digits than its factorization.

61501332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70287 (or 70285 counting only the distinct ones).

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

The square root of 61501332 is about 7842.2784954374. The cubic root of 61501332 is about 394.7251883306.

Adding to 61501332 its reverse (23310516), we get a palindrome (84811848).

The spelling of 61501332 in words is "sixty-one million, five hundred one thousand, three hundred thirty-two".