55105901 has 8 divisors (see below), whose sum is σ = 55664664. Its totient is φ = 54550080.

The previous prime is 55105847. The next prime is 55105937. The reversal of 55105901 is 10950155.

It can be written as a sum of positive squares in 4 ways, for example, as 7150276 + 47955625 = 2674^2 + 6925^2 .

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 55105901 - 2⁶ = 55105837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55105951) 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, 58091 + ... + 59031.

It is an arithmetic number, because the mean of its divisors is an integer number (6958083).

Almost surely, 2^55105901 is an apocalyptic number.

It is an amenable number.

55105901 is a deficient number, since it is larger than the sum of its proper divisors (558763).

55105901 is a wasteful number, since it uses less digits than its factorization.

55105901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471.

The product of its (nonzero) digits is 1125, while the sum is 26.

The square root of 55105901 is about 7423.3348974703. The cubic root of 55105901 is about 380.5391722935.

It can be divided in two parts, 5510 and 5901, that added together give a palindrome (11411).

The spelling of 55105901 in words is "fifty-five million, one hundred five thousand, nine hundred one".