55350769 has 2 divisors, whose sum is σ = 55350770. Its totient is φ = 55350768.

The previous prime is 55350767. The next prime is 55350787. The reversal of 55350769 is 96705355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29289744 + 26061025 = 5412^2 + 5105^2 .

It is a cyclic number.

It is not a de Polignac number, because 55350769 - 2¹ = 55350767 is a prime.

It is a super-2 number, since 2×55350769² = 6127415257782722, which contains 22 as substring.

Together with 55350767, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (55350767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27675384 + 27675385.

It is an arithmetic number, because the mean of its divisors is an integer number (27675385).

Almost surely, 2^55350769 is an apocalyptic number.

It is an amenable number.

55350769 is a deficient number, since it is larger than the sum of its proper divisors (1).

55350769 is an equidigital number, since it uses as much as digits as its factorization.

55350769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141750, while the sum is 40.

The square root of 55350769 is about 7439.8097421910. The cubic root of 55350769 is about 381.1019927503.

The spelling of 55350769 in words is "fifty-five million, three hundred fifty thousand, seven hundred sixty-nine".