61303506 has 32 divisors (see below), whose sum is σ = 138369600. Its totient is φ = 17935680.

The previous prime is 61303499. The next prime is 61303507. The reversal of 61303506 is 60530316.

It is not an unprimeable number, because it can be changed into a prime (61303507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14101 + ... + 17928.

It is an arithmetic number, because the mean of its divisors is an integer number (4324050).

Almost surely, 2^61303506 is an apocalyptic number.

61303506 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

61303506 is an abundant number, since it is smaller than the sum of its proper divisors (77066094).

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

61303506 is a wasteful number, since it uses less digits than its factorization.

61303506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32074.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 61303506 is about 7829.6555479791. The cubic root of 61303506 is about 394.3015076415.

The spelling of 61303506 in words is "sixty-one million, three hundred three thousand, five hundred six".