55442963 has 2 divisors, whose sum is σ = 55442964. Its totient is φ = 55442962.

The previous prime is 55442927. The next prime is 55442971. The reversal of 55442963 is 36924455.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55442963 is a prime.

It is not a weakly prime, because it can be changed into another prime (55442263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27721481 + 27721482.

It is an arithmetic number, because the mean of its divisors is an integer number (27721482).

Almost surely, 2^55442963 is an apocalyptic number.

55442963 is a deficient number, since it is larger than the sum of its proper divisors (1).

55442963 is an equidigital number, since it uses as much as digits as its factorization.

55442963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 38.

The square root of 55442963 is about 7446.0031560563. The cubic root of 55442963 is about 381.3134672446.

The spelling of 55442963 in words is "fifty-five million, four hundred forty-two thousand, nine hundred sixty-three".