61366255 has 16 divisors (see below), whose sum is σ = 75608064. Its totient is φ = 47792160.

The previous prime is 61366247. The next prime is 61366259. The reversal of 61366255 is 55266316.

It is not a de Polignac number, because 61366255 - 2³ = 61366247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61366255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61366259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51820 + ... + 52990.

It is an arithmetic number, because the mean of its divisors is an integer number (4725504).

Almost surely, 2^61366255 is an apocalyptic number.

61366255 is a deficient number, since it is larger than the sum of its proper divisors (14241809).

61366255 is a wasteful number, since it uses less digits than its factorization.

61366255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446.

The product of its digits is 32400, while the sum is 34.

The square root of 61366255 is about 7833.6616597859. The cubic root of 61366255 is about 394.4359947201.

The spelling of 61366255 in words is "sixty-one million, three hundred sixty-six thousand, two hundred fifty-five".