61000500 has 96 divisors (see below), whose sum is σ = 193834368. Its totient is φ = 14784000.

The previous prime is 61000493. The next prime is 61000517. The reversal of 61000500 is 500016.

61000500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61000500² = 7442122000500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14652 + ... + 18348.

It is an arithmetic number, because the mean of its divisors is an integer number (2019108).

Almost surely, 2^61000500 is an apocalyptic number.

61000500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61000500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96917184).

61000500 is an abundant number, since it is smaller than the sum of its proper divisors (132833868).

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

61000500 is a wasteful number, since it uses less digits than its factorization.

61000500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730 (or 3718 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 61000500 is about 7810.2816850610. The cubic root of 61000500 is about 393.6507938530.

Adding to 61000500 its reverse (500016), we get a palindrome (61500516).

The spelling of 61000500 in words is "sixty-one million, five hundred", and thus it is an aban number.