61655506 has 16 divisors (see below), whose sum is σ = 102547008. Its totient is φ = 27565200.

The previous prime is 61655501. The next prime is 61655519. The reversal of 61655506 is 60555616.

It is not an unprimeable number, because it can be changed into a prime (61655501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21630 + ... + 24313.

It is an arithmetic number, because the mean of its divisors is an integer number (6409188).

Almost surely, 2^61655506 is an apocalyptic number.

61655506 is a deficient number, since it is larger than the sum of its proper divisors (40891502).

61655506 is a wasteful number, since it uses less digits than its factorization.

61655506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46017.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 61655506 is about 7852.1020115635. The cubic root of 61655506 is about 395.0547507293.

The spelling of 61655506 in words is "sixty-one million, six hundred fifty-five thousand, five hundred six".