55341621505 has 8 divisors (see below), whose sum is σ = 66431745000. Its totient is φ = 44258764416.

The previous prime is 55341621487. The next prime is 55341621521. The reversal of 55341621505 is 50512614355.

It is a happy number.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 55341621504 = 1^2 + 235248^2 .

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 55341621505 - 2¹⁷ = 55341490433 is a prime.

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, 1799830 + ... + 1830319.

It is an arithmetic number, because the mean of its divisors is an integer number (8303968125).

Almost surely, 2^55341621505 is an apocalyptic number.

It is an amenable number.

55341621505 is a deficient number, since it is larger than the sum of its proper divisors (11090123495).

55341621505 is a wasteful number, since it uses less digits than its factorization.

55341621505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633203.

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 55341621505 in words is "fifty-five billion, three hundred forty-one million, six hundred twenty-one thousand, five hundred five".