55712543 has 2 divisors, whose sum is σ = 55712544. Its totient is φ = 55712542.

The previous prime is 55712539. The next prime is 55712551. The reversal of 55712543 is 34521755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55712543 - 2² = 55712539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55712513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27856271 + 27856272.

It is an arithmetic number, because the mean of its divisors is an integer number (27856272).

Almost surely, 2^55712543 is an apocalyptic number.

55712543 is a deficient number, since it is larger than the sum of its proper divisors (1).

55712543 is an equidigital number, since it uses as much as digits as its factorization.

55712543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21000, while the sum is 32.

The square root of 55712543 is about 7464.0835338305. The cubic root of 55712543 is about 381.9304877034.

The spelling of 55712543 in words is "fifty-five million, seven hundred twelve thousand, five hundred forty-three".