55167649 has 2 divisors, whose sum is σ = 55167650. Its totient is φ = 55167648.

The previous prime is 55167611. The next prime is 55167689. The reversal of 55167649 is 94676155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43560000 + 11607649 = 6600^2 + 3407^2 .

It is a cyclic number.

It is not a de Polignac number, because 55167649 - 2¹¹ = 55165601 is a prime.

It is not a weakly prime, because it can be changed into another prime (55167689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27583824 + 27583825.

It is an arithmetic number, because the mean of its divisors is an integer number (27583825).

Almost surely, 2^55167649 is an apocalyptic number.

It is an amenable number.

55167649 is a deficient number, since it is larger than the sum of its proper divisors (1).

55167649 is an equidigital number, since it uses as much as digits as its factorization.

55167649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 43.

The square root of 55167649 is about 7427.4927802052. The cubic root of 55167649 is about 380.6812548488.

The spelling of 55167649 in words is "fifty-five million, one hundred sixty-seven thousand, six hundred forty-nine".