61074855 has 48 divisors (see below), whose sum is σ = 109983744. Its totient is φ = 31331520.

The previous prime is 61074823. The next prime is 61074857. The reversal of 61074855 is 55847016.

It is not a de Polignac number, because 61074855 - 2⁵ = 61074823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61074857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 141490 + ... + 141920.

It is an arithmetic number, because the mean of its divisors is an integer number (2291328).

Almost surely, 2^61074855 is an apocalyptic number.

61074855 is a deficient number, since it is larger than the sum of its proper divisors (48908889).

61074855 is a wasteful number, since it uses less digits than its factorization.

61074855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 61074855 is about 7815.0403069978. The cubic root of 61074855 is about 393.8106724344.

The spelling of 61074855 in words is "sixty-one million, seventy-four thousand, eight hundred fifty-five".