61584655 has 16 divisors (see below), whose sum is σ = 80870400. Its totient is φ = 44649760.

The previous prime is 61584641. The next prime is 61584671. The reversal of 61584655 is 55648516.

It is not a de Polignac number, because 61584655 - 2⁵ = 61584623 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18186 + ... + 21304.

It is an arithmetic number, because the mean of its divisors is an integer number (5054400).

Almost surely, 2^61584655 is an apocalyptic number.

61584655 is a deficient number, since it is larger than the sum of its proper divisors (19285745).

61584655 is a wasteful number, since it uses less digits than its factorization.

61584655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494.

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

The square root of 61584655 is about 7847.5891202330. The cubic root of 61584655 is about 394.9033679125.

The spelling of 61584655 in words is "sixty-one million, five hundred eighty-four thousand, six hundred fifty-five".