61933855 has 4 divisors (see below), whose sum is σ = 74320632. Its totient is φ = 49547080.

The previous prime is 61933841. The next prime is 61933897. The reversal of 61933855 is 55833916.

61933855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 61933855 - 2⁹ = 61933343 is a prime.

It is a super-2 number, since 2×61933855² = 7671604790322050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6193381 + ... + 6193390.

It is an arithmetic number, because the mean of its divisors is an integer number (18580158).

Almost surely, 2^61933855 is an apocalyptic number.

61933855 is a deficient number, since it is larger than the sum of its proper divisors (12386777).

61933855 is a wasteful number, since it uses less digits than its factorization.

61933855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12386776.

The product of its digits is 97200, while the sum is 40.

The square root of 61933855 is about 7869.8065414596. The cubic root of 61933855 is about 395.6483610246.

The spelling of 61933855 in words is "sixty-one million, nine hundred thirty-three thousand, eight hundred fifty-five".