61188275 has 6 divisors (see below), whose sum is σ = 75873492. Its totient is φ = 48950600.

The previous prime is 61188247. The next prime is 61188331. The reversal of 61188275 is 57288116.

It is not a de Polignac number, because 61188275 - 2²⁰ = 60139699 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1223741 + ... + 1223790.

It is an arithmetic number, because the mean of its divisors is an integer number (12645582).

Almost surely, 2^61188275 is an apocalyptic number.

61188275 is a deficient number, since it is larger than the sum of its proper divisors (14685217).

61188275 is a wasteful number, since it uses less digits than its factorization.

61188275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2447541 (or 2447536 counting only the distinct ones).

The product of its digits is 26880, while the sum is 38.

The square root of 61188275 is about 7822.2934616390. The cubic root of 61188275 is about 394.0542990776.

The spelling of 61188275 in words is "sixty-one million, one hundred eighty-eight thousand, two hundred seventy-five".