61595490 has 32 divisors (see below), whose sum is σ = 161269056. Its totient is φ = 14932160.

The previous prime is 61595477. The next prime is 61595497. The reversal of 61595490 is 9459516.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61595497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92997 + ... + 93656.

It is an arithmetic number, because the mean of its divisors is an integer number (5039658).

Almost surely, 2^61595490 is an apocalyptic number.

61595490 is an abundant number, since it is smaller than the sum of its proper divisors (99673566).

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

61595490 is a wasteful number, since it uses less digits than its factorization.

61595490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186674.

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 61595490 is about 7848.2794292762. The cubic root of 61595490 is about 394.9265258842.

The spelling of 61595490 in words is "sixty-one million, five hundred ninety-five thousand, four hundred ninety".