55530473 has 2 divisors, whose sum is σ = 55530474. Its totient is φ = 55530472.

The previous prime is 55530421. The next prime is 55530481. The reversal of 55530473 is 37403555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33327529 + 22202944 = 5773^2 + 4712^2 .

It is a cyclic number.

It is not a de Polignac number, because 55530473 - 2¹⁰ = 55529449 is a prime.

It is not a weakly prime, because it can be changed into another prime (55530413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27765236 + 27765237.

It is an arithmetic number, because the mean of its divisors is an integer number (27765237).

Almost surely, 2^55530473 is an apocalyptic number.

It is an amenable number.

55530473 is a deficient number, since it is larger than the sum of its proper divisors (1).

55530473 is an equidigital number, since it uses as much as digits as its factorization.

55530473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 32.

The square root of 55530473 is about 7451.8771460619. The cubic root of 55530473 is about 381.5139808230.

The spelling of 55530473 in words is "fifty-five million, five hundred thirty thousand, four hundred seventy-three".