55155343 has 2 divisors, whose sum is σ = 55155344. Its totient is φ = 55155342.

The previous prime is 55155307. The next prime is 55155349. The reversal of 55155343 is 34355155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55155343 - 2⁹ = 55154831 is a prime.

It is a super-2 number, since 2×55155343² = 6084223722895298, which contains 22 as substring.

It is equal to p_3290971 and since 55155343 and 3290971 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55155349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27577671 + 27577672.

It is an arithmetic number, because the mean of its divisors is an integer number (27577672).

Almost surely, 2^55155343 is an apocalyptic number.

55155343 is a deficient number, since it is larger than the sum of its proper divisors (1).

55155343 is an equidigital number, since it uses as much as digits as its factorization.

55155343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22500, while the sum is 31.

The square root of 55155343 is about 7426.6643252540. The cubic root of 55155343 is about 380.6529471239.

The spelling of 55155343 in words is "fifty-five million, one hundred fifty-five thousand, three hundred forty-three".