61545548 has 12 divisors (see below), whose sum is σ = 108269952. Its totient is φ = 30611280.

The previous prime is 61545527. The next prime is 61545553. The reversal of 61545548 is 84554516.

It is a happy number.

61545548 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39515 + ... + 41042.

It is an arithmetic number, because the mean of its divisors is an integer number (9022496).

Almost surely, 2^61545548 is an apocalyptic number.

It is an amenable number.

61545548 is a deficient number, since it is larger than the sum of its proper divisors (46724404).

61545548 is a wasteful number, since it uses less digits than its factorization.

61545548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80752 (or 80750 counting only the distinct ones).

The product of its digits is 96000, while the sum is 38.

The square root of 61545548 is about 7845.0970675958. The cubic root of 61545548 is about 394.8197607429.

The spelling of 61545548 in words is "sixty-one million, five hundred forty-five thousand, five hundred forty-eight".