55653511 has 2 divisors, whose sum is σ = 55653512. Its totient is φ = 55653510.

The previous prime is 55653509. The next prime is 55653539. The reversal of 55653511 is 11535655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55653511 - 2¹ = 55653509 is a prime.

Together with 55653509, 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 (55653541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27826755 + 27826756.

It is an arithmetic number, because the mean of its divisors is an integer number (27826756).

Almost surely, 2^55653511 is an apocalyptic number.

55653511 is a deficient number, since it is larger than the sum of its proper divisors (1).

55653511 is an equidigital number, since it uses as much as digits as its factorization.

55653511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11250, while the sum is 31.

The square root of 55653511 is about 7460.1280820104. The cubic root of 55653511 is about 381.7955444921.

The spelling of 55653511 in words is "fifty-five million, six hundred fifty-three thousand, five hundred eleven".