55341621503 has 24 divisors (see below), whose sum is σ = 64666574784. Its totient is φ = 47222784000.

The previous prime is 55341621487. The next prime is 55341621521. The reversal of 55341621503 is 30512614355.

It is a Cunningham number, because it is equal to 235248²-1.

It is not a de Polignac number, because 55341621503 - 2⁴ = 55341621487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55341621563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11524703 + ... + 11529503.

It is an arithmetic number, because the mean of its divisors is an integer number (2694440616).

Almost surely, 2^55341621503 is an apocalyptic number.

55341621503 is a deficient number, since it is larger than the sum of its proper divisors (9324953281).

55341621503 is a wasteful number, since it uses less digits than its factorization.

55341621503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5823 (or 5816 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 55341621503 in words is "fifty-five billion, three hundred forty-one million, six hundred twenty-one thousand, five hundred three".