122554310520553 has 4 divisors (see below), whose sum is σ = 123067090062720. Its totient is φ = 122041530978388.

The previous prime is 122554310520539. The next prime is 122554310520581. The reversal of 122554310520553 is 355025013455221.

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 a de Polignac number, because none of the positive numbers 2^k-122554310520553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122554310520053) 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, 256389770725 + ... + 256389771202.

It is an arithmetic number, because the mean of its divisors is an integer number (30766772515680).

Almost surely, 2^{122554310520553} is an apocalyptic number.

It is an amenable number.

122554310520553 is a deficient number, since it is larger than the sum of its proper divisors (512779542167).

122554310520553 is an equidigital number, since it uses as much as digits as its factorization.

122554310520553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512779542166.

The product of its (nonzero) digits is 900000, while the sum is 43.

Adding to 122554310520553 its reverse (355025013455221), we get a palindrome (477579323975774).

The spelling of 122554310520553 in words is "one hundred twenty-two trillion, five hundred fifty-four billion, three hundred ten million, five hundred twenty thousand, five hundred fifty-three".