55051775 has 12 divisors (see below), whose sum is σ = 68727000. Its totient is φ = 43742880.

The previous prime is 55051771. The next prime is 55051793. The reversal of 55051775 is 57715055.

It is not a de Polignac number, because 55051775 - 2² = 55051771 is a prime.

It is a super-3 number, since 3×55051775³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55051771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3665 + ... + 11114.

It is an arithmetic number, because the mean of its divisors is an integer number (5727250).

Almost surely, 2^55051775 is an apocalyptic number.

55051775 is a deficient number, since it is larger than the sum of its proper divisors (13675225).

55051775 is a wasteful number, since it uses less digits than its factorization.

55051775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14938 (or 14933 counting only the distinct ones).

The product of its (nonzero) digits is 30625, while the sum is 35.

The square root of 55051775 is about 7419.6883357726. The cubic root of 55051775 is about 380.4145406893.

It can be divided in two parts, 550 and 51775, that added together give a palindrome (52325).

The spelling of 55051775 in words is "fifty-five million, fifty-one thousand, seven hundred seventy-five".