155054004200 has 96 divisors (see below), whose sum is σ = 376354539000. Its totient is φ = 59333299200.

The previous prime is 155054004199. The next prime is 155054004293. The reversal of 155054004200 is 2400450551.

It can be written as a sum of positive squares in 12 ways, for example, as 62247256036 + 92806748164 = 249494^2 + 304642^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 155054004200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 509570 + ... + 754830.

Almost surely, 2^155054004200 is an apocalyptic number.

155054004200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155054004200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188177269500).

155054004200 is an abundant number, since it is smaller than the sum of its proper divisors (221300534800).

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

155054004200 is a wasteful number, since it uses less digits than its factorization.

155054004200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245415 (or 245406 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

Adding to 155054004200 its reverse (2400450551), we get a palindrome (157454454751).

The spelling of 155054004200 in words is "one hundred fifty-five billion, fifty-four million, four thousand, two hundred".