55195851 has 16 divisors (see below), whose sum is σ = 74584064. Its totient is φ = 36306144.

The previous prime is 55195831. The next prime is 55195871. The reversal of 55195851 is 15859155.

55195851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55195831) and next prime (55195871).

It is not a de Polignac number, because 55195851 - 2¹⁰ = 55194827 is a prime.

It is a super-2 number, since 2×55195851² = 6093163935228402, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) 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 not an unprimeable number, because it can be changed into a prime (55195831) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 105276 + ... + 105798.

It is an arithmetic number, because the mean of its divisors is an integer number (4661504).

Almost surely, 2^55195851 is an apocalyptic number.

55195851 is a deficient number, since it is larger than the sum of its proper divisors (19388213).

55195851 is a wasteful number, since it uses less digits than its factorization.

55195851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930.

The product of its digits is 45000, while the sum is 39.

The square root of 55195851 is about 7429.3910248418. The cubic root of 55195851 is about 380.7461125691.

The spelling of 55195851 in words is "fifty-five million, one hundred ninety-five thousand, eight hundred fifty-one".