61605546 has 16 divisors (see below), whose sum is σ = 128568384. Its totient is φ = 19642304.

The previous prime is 61605539. The next prime is 61605553. The reversal of 61605546 is 64550616.

It is an interprime number because it is at equal distance from previous prime (61605539) and next prime (61605553).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223071 + ... + 223346.

It is an arithmetic number, because the mean of its divisors is an integer number (8035524).

Almost surely, 2^61605546 is an apocalyptic number.

61605546 is an abundant number, since it is smaller than the sum of its proper divisors (66962838).

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

61605546 is a wasteful number, since it uses less digits than its factorization.

61605546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446445.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 61605546 is about 7848.9200531028. The cubic root of 61605546 is about 394.9480164459.

The spelling of 61605546 in words is "sixty-one million, six hundred five thousand, five hundred forty-six".