61150554 has 12 divisors (see below), whose sum is σ = 132492906. Its totient is φ = 20383512.

The previous prime is 61150553. The next prime is 61150559. The reversal of 61150554 is 45505116.

It is a happy number.

61150554 is a `hidden beast` number, since 61 + 1 + 50 + 554 = 666.

61150554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 60419529 + 731025 = 7773^2 + 855^2 .

It is not an unprimeable number, because it can be changed into a prime (61150553) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1698609 + ... + 1698644.

Almost surely, 2^61150554 is an apocalyptic number.

61150554 is an abundant number, since it is smaller than the sum of its proper divisors (71342352).

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

61150554 is a wasteful number, since it uses less digits than its factorization.

61150554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3397261 (or 3397258 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 61150554 is about 7819.8819684187. The cubic root of 61150554 is about 393.9733076474.

The spelling of 61150554 in words is "sixty-one million, one hundred fifty thousand, five hundred fifty-four".