61854775 has 12 divisors (see below), whose sum is σ = 77407000. Its totient is φ = 49027680.

The previous prime is 61854701. The next prime is 61854781. The reversal of 61854775 is 57745816.

It is not a de Polignac number, because 61854775 - 2⁷ = 61854647 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 8625 + ... + 14074.

Almost surely, 2^61854775 is an apocalyptic number.

61854775 is a deficient number, since it is larger than the sum of its proper divisors (15552225).

61854775 is a wasteful number, since it uses less digits than its factorization.

61854775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22818 (or 22813 counting only the distinct ones).

The product of its digits is 235200, while the sum is 43.

The square root of 61854775 is about 7864.7806708134. The cubic root of 61854775 is about 395.4798952830.

The spelling of 61854775 in words is "sixty-one million, eight hundred fifty-four thousand, seven hundred seventy-five".