61555041 has 24 divisors (see below), whose sum is σ = 94741920. Its totient is φ = 38399616.

The previous prime is 61555027. The next prime is 61555049. The reversal of 61555041 is 14055516.

It is a happy number.

61555041 is a `hidden beast` number, since 6 + 155 + 504 + 1 = 666.

It is not a de Polignac number, because 61555041 - 2⁵ = 61555009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61554996 and 61555014.

It is not an unprimeable number, because it can be changed into a prime (61555049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12025 + ... + 16361.

It is an arithmetic number, because the mean of its divisors is an integer number (3947580).

Almost surely, 2^61555041 is an apocalyptic number.

It is an amenable number.

61555041 is a deficient number, since it is larger than the sum of its proper divisors (33186879).

61555041 is a wasteful number, since it uses less digits than its factorization.

61555041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4445 (or 4442 counting only the distinct ones).

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

The square root of 61555041 is about 7845.7020718353. The cubic root of 61555041 is about 394.8400591583.

The spelling of 61555041 in words is "sixty-one million, five hundred fifty-five thousand, forty-one".