55155503455 has 8 divisors (see below), whose sum is σ = 71277881472. Its totient is φ = 40730217888.

The previous prime is 55155503407. The next prime is 55155503479. The reversal of 55155503455 is 55430555155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55155503455 - 2¹¹ = 55155501407 is a prime.

It is a super-2 number, since 2×55155503455² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424273039 + ... + 424273168.

It is an arithmetic number, because the mean of its divisors is an integer number (8909735184).

Almost surely, 2^55155503455 is an apocalyptic number.

55155503455 is a deficient number, since it is larger than the sum of its proper divisors (16122378017).

55155503455 is a wasteful number, since it uses less digits than its factorization.

55155503455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848546225.

The product of its (nonzero) digits is 937500, while the sum is 43.

The spelling of 55155503455 in words is "fifty-five billion, one hundred fifty-five million, five hundred three thousand, four hundred fifty-five".