55555501133 has 48 divisors (see below), whose sum is σ = 65315980800. Its totient is φ = 47107061760.

The previous prime is 55555501129. The next prime is 55555501241. The reversal of 55555501133 is 33110555555.

It is not a de Polignac number, because 55555501133 - 2² = 55555501129 is a prime.

It is a super-2 number, since 2×55555501133² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55555501733) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45648941 + ... + 45650157.

It is an arithmetic number, because the mean of its divisors is an integer number (1360749600).

Almost surely, 2^55555501133 is an apocalyptic number.

It is an amenable number.

55555501133 is a deficient number, since it is larger than the sum of its proper divisors (9760479667).

55555501133 is a wasteful number, since it uses less digits than its factorization.

55555501133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658 (or 1647 counting only the distinct ones).

The product of its (nonzero) digits is 140625, while the sum is 38.

The spelling of 55555501133 in words is "fifty-five billion, five hundred fifty-five million, five hundred one thousand, one hundred thirty-three".