61395500 has 96 divisors (see below), whose sum is σ = 147184128. Its totient is φ = 22272000.

The previous prime is 61395497. The next prime is 61395539. The reversal of 61395500 is 559316.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 263384 + ... + 263616.

It is an arithmetic number, because the mean of its divisors is an integer number (1533168).

Almost surely, 2^61395500 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 61395500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73592064).

61395500 is an abundant number, since it is smaller than the sum of its proper divisors (85788628).

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

61395500 is a wasteful number, since it uses less digits than its factorization.

61395500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 61395500 is about 7835.5280613370. The cubic root of 61395500 is about 394.4986428791.

The spelling of 61395500 in words is "sixty-one million, three hundred ninety-five thousand, five hundred".