61610530 has 16 divisors (see below), whose sum is σ = 110989944. Its totient is φ = 24624000.

The previous prime is 61610501. The next prime is 61610543. The reversal of 61610530 is 3501616.

It can be written as a sum of positive squares in 4 ways, for example, as 50594769 + 11015761 = 7113^2 + 3319^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19030 + ... + 22030.

Almost surely, 2^61610530 is an apocalyptic number.

61610530 is a deficient number, since it is larger than the sum of its proper divisors (49379414).

61610530 is a wasteful number, since it uses less digits than its factorization.

61610530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5061.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 61610530 is about 7849.2375425897. The cubic root of 61610530 is about 394.9586668281.

The spelling of 61610530 in words is "sixty-one million, six hundred ten thousand, five hundred thirty".