5545102621 has 4 divisors (see below), whose sum is σ = 5545255744. Its totient is φ = 5544949500.

The previous prime is 5545102603. The next prime is 5545102631. The reversal of 5545102621 is 1262015455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5545102621 - 2²⁷ = 5410884893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5545102631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11596 + ... + 105946.

It is an arithmetic number, because the mean of its divisors is an integer number (1386313936).

Almost surely, 2^5545102621 is an apocalyptic number.

It is an amenable number.

5545102621 is a deficient number, since it is larger than the sum of its proper divisors (153123).

5545102621 is an equidigital number, since it uses as much as digits as its factorization.

5545102621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153122.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 5545102621 is about 74465.4458188494. The cubic root of 5545102621 is about 1769.9861278664.

The spelling of 5545102621 in words is "five billion, five hundred forty-five million, one hundred two thousand, six hundred twenty-one".