61485655 has 32 divisors (see below), whose sum is σ = 95178240. Its totient is φ = 37000320.

The previous prime is 61485643. The next prime is 61485659. The reversal of 61485655 is 55658416.

It is not a de Polignac number, because 61485655 - 2⁵ = 61485623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61485659) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8412 + ... + 13918.

It is an arithmetic number, because the mean of its divisors is an integer number (2974320).

Almost surely, 2^61485655 is an apocalyptic number.

61485655 is a deficient number, since it is larger than the sum of its proper divisors (33692585).

61485655 is a wasteful number, since it uses less digits than its factorization.

61485655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5559.

The product of its digits is 144000, while the sum is 40.

The square root of 61485655 is about 7841.2789135447. The cubic root of 61485655 is about 394.6916463327.

The spelling of 61485655 in words is "sixty-one million, four hundred eighty-five thousand, six hundred fifty-five".