55912543 has 2 divisors, whose sum is σ = 55912544. Its totient is φ = 55912542.

The previous prime is 55912501. The next prime is 55912553. The reversal of 55912543 is 34521955.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55912543 - 2¹³ = 55904351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55912499 and 55912508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55912553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27956271 + 27956272.

It is an arithmetic number, because the mean of its divisors is an integer number (27956272).

Almost surely, 2^55912543 is an apocalyptic number.

55912543 is a deficient number, since it is larger than the sum of its proper divisors (1).

55912543 is an equidigital number, since it uses as much as digits as its factorization.

55912543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27000, while the sum is 34.

The square root of 55912543 is about 7477.4690236737. The cubic root of 55912543 is about 382.3869670422.

The spelling of 55912543 in words is "fifty-five million, nine hundred twelve thousand, five hundred forty-three".