55233091 has 2 divisors, whose sum is σ = 55233092. Its totient is φ = 55233090.

The previous prime is 55233083. The next prime is 55233107. The reversal of 55233091 is 19033255.

55233091 is nontrivially palindromic in base 16.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55233091 - 2³ = 55233083 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55233001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27616545 + 27616546.

It is an arithmetic number, because the mean of its divisors is an integer number (27616546).

Almost surely, 2^55233091 is an apocalyptic number.

55233091 is a deficient number, since it is larger than the sum of its proper divisors (1).

55233091 is an equidigital number, since it uses as much as digits as its factorization.

55233091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 55233091 is about 7431.8968641929. The cubic root of 55233091 is about 380.8317216464.

The spelling of 55233091 in words is "fifty-five million, two hundred thirty-three thousand, ninety-one".