55146533 has 8 divisors (see below), whose sum is σ = 60396000. Its totient is φ = 50041008.

The previous prime is 55146529. The next prime is 55146547. The reversal of 55146533 is 33564155.

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 55146533 - 2² = 55146529 is a prime.

It is a super-2 number, since 2×55146533² = 6082280203840178, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55146533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55146523) 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, 35183 + ... + 36716.

It is an arithmetic number, because the mean of its divisors is an integer number (7549500).

Almost surely, 2^55146533 is an apocalyptic number.

It is an amenable number.

55146533 is a deficient number, since it is larger than the sum of its proper divisors (5249467).

55146533 is a wasteful number, since it uses less digits than its factorization.

55146533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71971.

The product of its digits is 27000, while the sum is 32.

The square root of 55146533 is about 7426.0711685251. The cubic root of 55146533 is about 380.6326787277.

The spelling of 55146533 in words is "fifty-five million, one hundred forty-six thousand, five hundred thirty-three".