55513253 has 2 divisors, whose sum is σ = 55513254. Its totient is φ = 55513252.

The previous prime is 55513229. The next prime is 55513291. The reversal of 55513253 is 35231555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46881409 + 8631844 = 6847^2 + 2938^2 .

It is a cyclic number.

It is not a de Polignac number, because 55513253 - 2¹⁰ = 55512229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55513153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27756626 + 27756627.

It is an arithmetic number, because the mean of its divisors is an integer number (27756627).

Almost surely, 2^55513253 is an apocalyptic number.

It is an amenable number.

55513253 is a deficient number, since it is larger than the sum of its proper divisors (1).

55513253 is an equidigital number, since it uses as much as digits as its factorization.

55513253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11250, while the sum is 29.

The square root of 55513253 is about 7450.7216429014. The cubic root of 55513253 is about 381.4745409167.

The spelling of 55513253 in words is "fifty-five million, five hundred thirteen thousand, two hundred fifty-three".