55073969 has 2 divisors, whose sum is σ = 55073970. Its totient is φ = 55073968.

The previous prime is 55073959. The next prime is 55074007. The reversal of 55073969 is 96937055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49843600 + 5230369 = 7060^2 + 2287^2 .

It is a cyclic number.

It is not a de Polignac number, because 55073969 - 2⁸ = 55073713 is a prime.

It is a super-2 number, since 2×55073969² = 6066284122825922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55073939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27536984 + 27536985.

It is an arithmetic number, because the mean of its divisors is an integer number (27536985).

Almost surely, 2^55073969 is an apocalyptic number.

It is an amenable number.

55073969 is a deficient number, since it is larger than the sum of its proper divisors (1).

55073969 is an equidigital number, since it uses as much as digits as its factorization.

55073969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 255150, while the sum is 44.

The square root of 55073969 is about 7421.1838004459. The cubic root of 55073969 is about 380.4656549116.

The spelling of 55073969 in words is "fifty-five million, seventy-three thousand, nine hundred sixty-nine".