55523653 has 2 divisors, whose sum is σ = 55523654. Its totient is φ = 55523652.

The previous prime is 55523651. The next prime is 55523669. The reversal of 55523653 is 35632555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55323844 + 199809 = 7438^2 + 447^2 .

It is a cyclic number.

It is not a de Polignac number, because 55523653 - 2¹ = 55523651 is a prime.

Together with 55523651, 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 (55523651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27761826 + 27761827.

It is an arithmetic number, because the mean of its divisors is an integer number (27761827).

Almost surely, 2^55523653 is an apocalyptic number.

It is an amenable number.

55523653 is a deficient number, since it is larger than the sum of its proper divisors (1).

55523653 is an equidigital number, since it uses as much as digits as its factorization.

55523653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67500, while the sum is 34.

The square root of 55523653 is about 7451.4195291904. The cubic root of 55523653 is about 381.4983615798.

The spelling of 55523653 in words is "fifty-five million, five hundred twenty-three thousand, six hundred fifty-three".