55302493 has 2 divisors, whose sum is σ = 55302494. Its totient is φ = 55302492.

The previous prime is 55302491. The next prime is 55302517. The reversal of 55302493 is 39420355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52388644 + 2913849 = 7238^2 + 1707^2 .

It is a cyclic number.

It is not a de Polignac number, because 55302493 - 2¹ = 55302491 is a prime.

Together with 55302491, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55302491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27651246 + 27651247.

It is an arithmetic number, because the mean of its divisors is an integer number (27651247).

Almost surely, 2^55302493 is an apocalyptic number.

It is an amenable number.

55302493 is a deficient number, since it is larger than the sum of its proper divisors (1).

55302493 is an equidigital number, since it uses as much as digits as its factorization.

55302493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 55302493 is about 7436.5645966400. The cubic root of 55302493 is about 380.9911636292.

The spelling of 55302493 in words is "fifty-five million, three hundred two thousand, four hundred ninety-three".