55532405554 has 4 divisors (see below), whose sum is σ = 83298608334. Its totient is φ = 27766202776.

The previous prime is 55532405531. The next prime is 55532405587. The reversal of 55532405554 is 45550423555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 46416548025 + 9115857529 = 215445^2 + 95477^2 .

It is a super-4 number, since 4×55532405554⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3, 2.

It is a self number, because there is not a number n which added to its sum of digits gives 55532405554.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13883101387 + ... + 13883101390.

Almost surely, 2^55532405554 is an apocalyptic number.

55532405554 is a deficient number, since it is larger than the sum of its proper divisors (27766202780).

55532405554 is a wasteful number, since it uses less digits than its factorization.

55532405554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27766202779.

The product of its (nonzero) digits is 1500000, while the sum is 43.

The spelling of 55532405554 in words is "fifty-five billion, five hundred thirty-two million, four hundred five thousand, five hundred fifty-four".