55053893 has 2 divisors, whose sum is σ = 55053894. Its totient is φ = 55053892.

The previous prime is 55053863. The next prime is 55053907. The reversal of 55053893 is 39835055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50027329 + 5026564 = 7073^2 + 2242^2 .

It is a cyclic number.

It is not a de Polignac number, because 55053893 - 2⁸ = 55053637 is a prime.

It is a super-2 number, since 2×55053893² = 6061862268910898, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55053863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27526946 + 27526947.

It is an arithmetic number, because the mean of its divisors is an integer number (27526947).

Almost surely, 2^55053893 is an apocalyptic number.

It is an amenable number.

55053893 is a deficient number, since it is larger than the sum of its proper divisors (1).

55053893 is an equidigital number, since it uses as much as digits as its factorization.

55053893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 55053893 is about 7419.8310627669. The cubic root of 55053893 is about 380.4194191737.

It can be divided in two parts, 550 and 53893, that multiplied together give a triangular number (29641150 = T₇₆₉₉).

The spelling of 55053893 in words is "fifty-five million, fifty-three thousand, eight hundred ninety-three".