550215401232 has 160 divisors (see below), whose sum is σ = 1716760120320. Its totient is φ = 148336704000.

The previous prime is 550215401231. The next prime is 550215401233. The reversal of 550215401232 is 232104512055.

It is an interprime number because it is at equal distance from previous prime (550215401231) and next prime (550215401233).

It is a self number, because there is not a number n which added to its sum of digits gives 550215401232.

It is not an unprimeable number, because it can be changed into a prime (550215401231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1430698 + ... + 1774070.

It is an arithmetic number, because the mean of its divisors is an integer number (10729750752).

Almost surely, 2^550215401232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550215401232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (858380060160).

550215401232 is an abundant number, since it is smaller than the sum of its proper divisors (1166544719088).

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

550215401232 is a wasteful number, since it uses less digits than its factorization.

550215401232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343661 (or 343655 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 550215401232 its reverse (232104512055), we get a palindrome (782319913287).

The spelling of 550215401232 in words is "five hundred fifty billion, two hundred fifteen million, four hundred one thousand, two hundred thirty-two".