55454419 has 2 divisors, whose sum is σ = 55454420. Its totient is φ = 55454418.

The previous prime is 55454401. The next prime is 55454431. The reversal of 55454419 is 91445455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55454419 - 2⁷ = 55454291 is a prime.

It is a super-2 number, since 2×55454419² = 6150385173255122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55454519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27727209 + 27727210.

It is an arithmetic number, because the mean of its divisors is an integer number (27727210).

Almost surely, 2^55454419 is an apocalyptic number.

55454419 is a deficient number, since it is larger than the sum of its proper divisors (1).

55454419 is an equidigital number, since it uses as much as digits as its factorization.

55454419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72000, while the sum is 37.

The square root of 55454419 is about 7446.7723880887. The cubic root of 55454419 is about 381.3397286251.

The spelling of 55454419 in words is "fifty-five million, four hundred fifty-four thousand, four hundred nineteen".