55005555005553 has 16 divisors (see below), whose sum is σ = 75268058500800. Its totient is φ = 35718115008960.

The previous prime is 55005555005539. The next prime is 55005555005567. The reversal of 55005555005553 is 35550055550055.

It is an interprime number because it is at equal distance from previous prime (55005555005539) and next prime (55005555005567).

It is not a de Polignac number, because 55005555005553 - 2¹⁷ = 55005554874481 is a prime.

It is a super-2 number, since 2×55005555005553² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55005555005593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1425512118 + ... + 1425550703.

It is an arithmetic number, because the mean of its divisors is an integer number (4704253656300).

Almost surely, 2^{55005555005553} is an apocalyptic number.

It is an amenable number.

55005555005553 is a deficient number, since it is larger than the sum of its proper divisors (20262503495247).

55005555005553 is a wasteful number, since it uses less digits than its factorization.

55005555005553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851062992.

The product of its (nonzero) digits is 5859375, while the sum is 48.

The spelling of 55005555005553 in words is "fifty-five trillion, five billion, five hundred fifty-five million, five thousand, five hundred fifty-three".