5550121503 has 6 divisors (see below), whose sum is σ = 8016842184. Its totient is φ = 3700080996.

The previous prime is 5550121481. The next prime is 5550121517. The reversal of 5550121503 is 3051210555.

5550121503 is a `hidden beast` number, since 5 + 5 + 501 + 2 + 150 + 3 = 666.

It is not a de Polignac number, because 5550121503 - 2¹² = 5550117407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5550121543) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 308340075 + ... + 308340092.

It is an arithmetic number, because the mean of its divisors is an integer number (1336140364).

Almost surely, 2^5550121503 is an apocalyptic number.

5550121503 is a deficient number, since it is larger than the sum of its proper divisors (2466720681).

5550121503 is a wasteful number, since it uses less digits than its factorization.

5550121503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616680173 (or 616680170 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 5550121503 is about 74499.1375990353. The cubic root of 5550121503 is about 1770.5199726756.

The spelling of 5550121503 in words is "five billion, five hundred fifty million, one hundred twenty-one thousand, five hundred three".