61545088 has 32 divisors (see below), whose sum is σ = 133758720. Its totient is φ = 27974400.

The previous prime is 61545073. The next prime is 61545091. The reversal of 61545088 is 88054516.

It is a tau number, because it is divible by the number of its divisors (32).

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 3 ways as a sum of consecutive naturals, for example, 20448 + ... + 23263.

It is an arithmetic number, because the mean of its divisors is an integer number (4179960).

Almost surely, 2^61545088 is an apocalyptic number.

It is an amenable number.

61545088 is an abundant number, since it is smaller than the sum of its proper divisors (72213632).

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

61545088 is a wasteful number, since it uses less digits than its factorization.

61545088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43736 (or 43724 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 61545088 is about 7845.0677498668. The cubic root of 61545088 is about 394.8187770945.

It can be divided in two parts, 6154508 and 8, that added together give a palindrome (6154516).

The spelling of 61545088 in words is "sixty-one million, five hundred forty-five thousand, eighty-eight".