551330450331 has 16 divisors (see below), whose sum is σ = 774804022560. Its totient is φ = 348183530240.

The previous prime is 551330450327. The next prime is 551330450351. The reversal of 551330450331 is 133054033155.

It is a happy number.

551330450331 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 551330450331 - 2² = 551330450327 is a prime.

It is a super-2 number, since 2×551330450331² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 551330450292 and 551330450301.

It is not an unprimeable number, because it can be changed into a prime (551330450351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59779650 + ... + 59788871.

It is an arithmetic number, because the mean of its divisors is an integer number (48425251410).

Almost surely, 2^551330450331 is an apocalyptic number.

551330450331 is a deficient number, since it is larger than the sum of its proper divisors (223473572229).

551330450331 is a wasteful number, since it uses less digits than its factorization.

551330450331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119568606.

The product of its (nonzero) digits is 40500, while the sum is 33.

Adding to 551330450331 its reverse (133054033155), we get a palindrome (684384483486).

The spelling of 551330450331 in words is "five hundred fifty-one billion, three hundred thirty million, four hundred fifty thousand, three hundred thirty-one".