55158543 has 32 divisors (see below), whose sum is σ = 89644800. Its totient is φ = 33242400.

The previous prime is 55158541. The next prime is 55158547. The reversal of 55158543 is 34585155.

It is a happy number.

55158543 is a `hidden beast` number, since 551 + 58 + 54 + 3 = 666.

It is not a de Polignac number, because 55158543 - 2¹ = 55158541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55158498 and 55158507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55158541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67608 + ... + 68418.

It is an arithmetic number, because the mean of its divisors is an integer number (2801400).

Almost surely, 2^55158543 is an apocalyptic number.

55158543 is a deficient number, since it is larger than the sum of its proper divisors (34486257).

55158543 is a wasteful number, since it uses less digits than its factorization.

55158543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060 (or 1054 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The square root of 55158543 is about 7426.8797620535. The cubic root of 55158543 is about 380.6603085496.

The spelling of 55158543 in words is "fifty-five million, one hundred fifty-eight thousand, five hundred forty-three".