61055115 has 32 divisors (see below), whose sum is σ = 108850176. Its totient is φ = 28968960.

The previous prime is 61055081. The next prime is 61055119. The reversal of 61055115 is 51155016.

It is not a de Polignac number, because 61055115 - 2⁶ = 61055051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61055119) 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, 3819 + ... + 11691.

It is an arithmetic number, because the mean of its divisors is an integer number (3401568).

Almost surely, 2^61055115 is an apocalyptic number.

61055115 is a deficient number, since it is larger than the sum of its proper divisors (47795061).

61055115 is a wasteful number, since it uses less digits than its factorization.

61055115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7939.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 61055115 is about 7813.7772555916. Note that the first 3 decimals coincide. The cubic root of 61055115 is about 393.7682400218.

Subtracting from 61055115 its reverse (51155016), we obtain a palindrome (9900099).

The spelling of 61055115 in words is "sixty-one million, fifty-five thousand, one hundred fifteen".