55121467 has 2 divisors, whose sum is σ = 55121468. Its totient is φ = 55121466.

The previous prime is 55121449. The next prime is 55121477. The reversal of 55121467 is 76412155.

55121467 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55121467 - 2²³ = 46732859 is a prime.

It is a super-2 number, since 2×55121467² = 6076752248464178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55121477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27560733 + 27560734.

It is an arithmetic number, because the mean of its divisors is an integer number (27560734).

Almost surely, 2^55121467 is an apocalyptic number.

55121467 is a deficient number, since it is larger than the sum of its proper divisors (1).

55121467 is an equidigital number, since it uses as much as digits as its factorization.

55121467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 31.

The square root of 55121467 is about 7424.3832740504. The cubic root of 55121467 is about 380.5749997639.

The spelling of 55121467 in words is "fifty-five million, one hundred twenty-one thousand, four hundred sixty-seven".