61555148 has 12 divisors (see below), whose sum is σ = 110013792. Its totient is φ = 30122640.

The previous prime is 61555127. The next prime is 61555163. The reversal of 61555148 is 84155516.

It is a happy number.

61555148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 163523 + ... + 163898.

It is an arithmetic number, because the mean of its divisors is an integer number (9167816).

Almost surely, 2^61555148 is an apocalyptic number.

It is an amenable number.

61555148 is a deficient number, since it is larger than the sum of its proper divisors (48458644).

61555148 is a wasteful number, since it uses less digits than its factorization.

61555148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327472 (or 327470 counting only the distinct ones).

The product of its digits is 24000, while the sum is 35.

The square root of 61555148 is about 7845.7088908524. The cubic root of 61555148 is about 394.8402879392.

The spelling of 61555148 in words is "sixty-one million, five hundred fifty-five thousand, one hundred forty-eight".