55911903 has 8 divisors (see below), whose sum is σ = 74966400. Its totient is φ = 37066008.

The previous prime is 55911901. The next prime is 55911917. The reversal of 55911903 is 30911955.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55911903 - 2¹ = 55911901 is a prime.

It is a super-3 number, since 3×55911903³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55911901) 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, 51523 + ... + 52596.

It is an arithmetic number, because the mean of its divisors is an integer number (9370800).

Almost surely, 2^55911903 is an apocalyptic number.

55911903 is a deficient number, since it is larger than the sum of its proper divisors (19054497).

55911903 is a wasteful number, since it uses less digits than its factorization.

55911903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104301.

The product of its (nonzero) digits is 6075, while the sum is 33.

The square root of 55911903 is about 7477.4262283221. The cubic root of 55911903 is about 382.3855080459.

The spelling of 55911903 in words is "fifty-five million, nine hundred eleven thousand, nine hundred three".