55438363 has 2 divisors, whose sum is σ = 55438364. Its totient is φ = 55438362.

The previous prime is 55438307. The next prime is 55438373. The reversal of 55438363 is 36383455.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55438363 - 2²⁵ = 21883931 is a prime.

It is not a weakly prime, because it can be changed into another prime (55438373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27719181 + 27719182.

It is an arithmetic number, because the mean of its divisors is an integer number (27719182).

Almost surely, 2^55438363 is an apocalyptic number.

55438363 is a deficient number, since it is larger than the sum of its proper divisors (1).

55438363 is an equidigital number, since it uses as much as digits as its factorization.

55438363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 37.

The square root of 55438363 is about 7445.6942591004. The cubic root of 55438363 is about 381.3029213287.

The spelling of 55438363 in words is "fifty-five million, four hundred thirty-eight thousand, three hundred sixty-three".