55500531643 has 8 divisors (see below), whose sum is σ = 56592558000. Its totient is φ = 54413550048.

The previous prime is 55500531529. The next prime is 55500531649. The reversal of 55500531643 is 34613500555.

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 55500531643 - 2²⁵ = 55466977211 is a prime.

It is a super-3 number, since 3×55500531643³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55500531649) 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, 1238968 + ... + 1282981.

It is an arithmetic number, because the mean of its divisors is an integer number (7074069750).

Almost surely, 2^55500531643 is an apocalyptic number.

55500531643 is a deficient number, since it is larger than the sum of its proper divisors (1092026357).

55500531643 is a wasteful number, since it uses less digits than its factorization.

55500531643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522381.

The product of its (nonzero) digits is 135000, while the sum is 37.

The spelling of 55500531643 in words is "fifty-five billion, five hundred million, five hundred thirty-one thousand, six hundred forty-three".