61280875 has 8 divisors (see below), whose sum is σ = 76478688. Its totient is φ = 49024600.

The previous prime is 61280819. The next prime is 61280927. The reversal of 61280875 is 57808216.

It is not a de Polignac number, because 61280875 - 2¹³ = 61272683 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244999 + ... + 245248.

It is an arithmetic number, because the mean of its divisors is an integer number (9559836).

Almost surely, 2^61280875 is an apocalyptic number.

61280875 is a deficient number, since it is larger than the sum of its proper divisors (15197813).

61280875 is an equidigital number, since it uses as much as digits as its factorization.

61280875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490262 (or 490252 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 61280875 is about 7828.2102041271. The cubic root of 61280875 is about 394.2529811308.

The spelling of 61280875 in words is "sixty-one million, two hundred eighty thousand, eight hundred seventy-five".