61077275 has 36 divisors (see below), whose sum is σ = 89438472. Its totient is φ = 41247360.

The previous prime is 61077251. The next prime is 61077281. The reversal of 61077275 is 57277016.

It is not a de Polignac number, because 61077275 - 2⁸ = 61077019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 89084 + ... + 89766.

It is an arithmetic number, because the mean of its divisors is an integer number (2484402).

Almost surely, 2^61077275 is an apocalyptic number.

61077275 is a deficient number, since it is larger than the sum of its proper divisors (28361197).

61077275 is a wasteful number, since it uses less digits than its factorization.

61077275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 35.

The square root of 61077275 is about 7815.1951351198. The cubic root of 61077275 is about 393.8158737525.

The spelling of 61077275 in words is "sixty-one million, seventy-seven thousand, two hundred seventy-five".