210055001550 has 48 divisors (see below), whose sum is σ = 521128169472. Its totient is φ = 55994047200.

The previous prime is 210055001549. The next prime is 210055001557. The reversal of 210055001550 is 55100550012.

It is a self number, because there is not a number n which added to its sum of digits gives 210055001550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210055001557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153267 + ... + 666033.

It is an arithmetic number, because the mean of its divisors is an integer number (10856836864).

Almost surely, 2^210055001550 is an apocalyptic number.

210055001550 is an abundant number, since it is smaller than the sum of its proper divisors (311073167922).

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

210055001550 is a wasteful number, since it uses less digits than its factorization.

210055001550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515513 (or 515508 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 24.

Adding to 210055001550 its reverse (55100550012), we get a palindrome (265155551562).

The spelling of 210055001550 in words is "two hundred ten billion, fifty-five million, one thousand, five hundred fifty".