551220540315053 has 4 divisors (see below), whose sum is σ = 629966331788640. Its totient is φ = 472474748841468.

The previous prime is 551220540315043. The next prime is 551220540315061. The reversal of 551220540315053 is 350513045022155.

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.

It is a cyclic number.

It is not a de Polignac number, because 551220540315053 - 2⁴ = 551220540315037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 551220540315053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551220540315043) 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, 39372895736783 + ... + 39372895736796.

It is an arithmetic number, because the mean of its divisors is an integer number (157491582947160).

Almost surely, 2^{551220540315053} is an apocalyptic number.

It is an amenable number.

551220540315053 is a deficient number, since it is larger than the sum of its proper divisors (78745791473587).

551220540315053 is an equidigital number, since it uses as much as digits as its factorization.

551220540315053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78745791473586.

The product of its (nonzero) digits is 450000, while the sum is 41.

The spelling of 551220540315053 in words is "five hundred fifty-one trillion, two hundred twenty billion, five hundred forty million, three hundred fifteen thousand, fifty-three".