55290000457 has 2 divisors, whose sum is σ = 55290000458. Its totient is φ = 55290000456.

The previous prime is 55290000427. The next prime is 55290000553. The reversal of 55290000457 is 75400009255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45903491001 + 9386509456 = 214251^2 + 96884^2 .

It is a cyclic number.

It is not a de Polignac number, because 55290000457 - 2²³ = 55281611849 is a prime.

It is not a weakly prime, because it can be changed into another prime (55290000427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27645000228 + 27645000229.

It is an arithmetic number, because the mean of its divisors is an integer number (27645000229).

Almost surely, 2^55290000457 is an apocalyptic number.

It is an amenable number.

55290000457 is a deficient number, since it is larger than the sum of its proper divisors (1).

55290000457 is an equidigital number, since it uses as much as digits as its factorization.

55290000457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 55290000457 in words is "fifty-five billion, two hundred ninety million, four hundred fifty-seven", and thus it is an aban number.