550400164530 has 32 divisors (see below), whose sum is σ = 1321886188224. Its totient is φ = 146670511296.

The previous prime is 550400164529. The next prime is 550400164541. The reversal of 550400164530 is 35461004055.

It is a super-2 number, since 2×550400164530² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 550400164491 and 550400164500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6385597 + ... + 6471216.

It is an arithmetic number, because the mean of its divisors is an integer number (41308943382).

Almost surely, 2^550400164530 is an apocalyptic number.

550400164530 is an abundant number, since it is smaller than the sum of its proper divisors (771486023694).

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

550400164530 is a wasteful number, since it uses less digits than its factorization.

550400164530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12858250.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 550400164530 its reverse (35461004055), we get a palindrome (585861168585).

The spelling of 550400164530 in words is "five hundred fifty billion, four hundred million, one hundred sixty-four thousand, five hundred thirty".