550421211515 has 8 divisors (see below), whose sum is σ = 754863375840. Its totient is φ = 377431687872.

The previous prime is 550421211503. The next prime is 550421211517. The reversal of 550421211515 is 515112124055.

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 550421211515 - 2⁸ = 550421211259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550421211517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7863160130 + ... + 7863160199.

It is an arithmetic number, because the mean of its divisors is an integer number (94357921980).

Almost surely, 2^550421211515 is an apocalyptic number.

550421211515 is a deficient number, since it is larger than the sum of its proper divisors (204442164325).

550421211515 is a wasteful number, since it uses less digits than its factorization.

550421211515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15726320341.

The product of its (nonzero) digits is 10000, while the sum is 32.

The spelling of 550421211515 in words is "five hundred fifty billion, four hundred twenty-one million, two hundred eleven thousand, five hundred fifteen".