61775459 has 8 divisors (see below), whose sum is σ = 63871008. Its totient is φ = 59702400.

The previous prime is 61775453. The next prime is 61775503. The reversal of 61775459 is 95457716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61775459 - 2²⁴ = 44998243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61775453) 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, 59 + ... + 11115.

It is an arithmetic number, because the mean of its divisors is an integer number (7983876).

Almost surely, 2^61775459 is an apocalyptic number.

61775459 is a deficient number, since it is larger than the sum of its proper divisors (2095549).

61775459 is a wasteful number, since it uses less digits than its factorization.

61775459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11245.

The product of its digits is 264600, while the sum is 44.

The square root of 61775459 is about 7859.7365731938. The cubic root of 61775459 is about 395.3107824940.

The spelling of 61775459 in words is "sixty-one million, seven hundred seventy-five thousand, four hundred fifty-nine".