61280600 has 48 divisors (see below), whose sum is σ = 144841920. Its totient is φ = 24105600.

The previous prime is 61280599. The next prime is 61280603. The reversal of 61280600 is 608216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61280603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9689 + ... + 14711.

It is an arithmetic number, because the mean of its divisors is an integer number (3017540).

Almost surely, 2^61280600 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 61280600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72420960).

61280600 is an abundant number, since it is smaller than the sum of its proper divisors (83561320).

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

61280600 is a wasteful number, since it uses less digits than its factorization.

61280600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5100 (or 5091 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 61280600 is about 7828.1926394283. The cubic root of 61280600 is about 394.2523913887.

Adding to 61280600 its reverse (608216), we get a palindrome (61888816).

The spelling of 61280600 in words is "sixty-one million, two hundred eighty thousand, six hundred".