551040425042450 has 144 divisors (see below), whose sum is σ = 1194186925895040. Its totient is φ = 188624713495680.

The previous prime is 551040425042431. The next prime is 551040425042483. The reversal of 551040425042450 is 54240524040155.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 551040425042398 and 551040425042407.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 14429277956 + ... + 14429316144.

It is an arithmetic number, because the mean of its divisors is an integer number (8292964763160).

Almost surely, 2^{551040425042450} is an apocalyptic number.

551040425042450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

551040425042450 is an abundant number, since it is smaller than the sum of its proper divisors (643146500852590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551040425042450 is a wasteful number, since it uses less digits than its factorization.

551040425042450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47521 (or 47509 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 41.

The spelling of 551040425042450 in words is "five hundred fifty-one trillion, forty billion, four hundred twenty-five million, forty-two thousand, four hundred fifty".