61610605 has 16 divisors (see below), whose sum is σ = 85688064. Its totient is φ = 41650560.

The previous prime is 61610581. The next prime is 61610611. The reversal of 61610605 is 50601616.

It is not a de Polignac number, because 61610605 - 2⁷ = 61610477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61610605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9912 + ... + 14881.

It is an arithmetic number, because the mean of its divisors is an integer number (5355504).

Almost surely, 2^61610605 is an apocalyptic number.

It is an amenable number.

61610605 is a deficient number, since it is larger than the sum of its proper divisors (24077459).

61610605 is a wasteful number, since it uses less digits than its factorization.

61610605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24876.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 61610605 is about 7849.2423201224. The cubic root of 61610605 is about 394.9588270923.

The spelling of 61610605 in words is "sixty-one million, six hundred ten thousand, six hundred five".