61075280 has 40 divisors (see below), whose sum is σ = 162287232. Its totient is φ = 20939904.

The previous prime is 61075277. The next prime is 61075283. The reversal of 61075280 is 8257016.

It is an interprime number because it is at equal distance from previous prime (61075277) and next prime (61075283).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61075283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53972 + ... + 55091.

Almost surely, 2^61075280 is an apocalyptic number.

It is an amenable number.

61075280 is an abundant number, since it is smaller than the sum of its proper divisors (101211952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61075280 is a wasteful number, since it uses less digits than its factorization.

61075280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109083 (or 109077 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 61075280 is about 7815.0674981090. The cubic root of 61075280 is about 393.8115858990.

The spelling of 61075280 in words is "sixty-one million, seventy-five thousand, two hundred eighty".