155125003500 has 216 divisors, whose sum is σ = 508174439136. Its totient is φ = 41365792800.

The previous prime is 155125003493. The next prime is 155125003513. The reversal of 155125003500 is 5300521551.

155125003500 is a `hidden beast` number, since 15 + 51 + 250 + 0 + 350 + 0 = 666.

155125003500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3256857 + ... + 3304143.

Almost surely, 2^155125003500 is an apocalyptic number.

155125003500 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 155125003500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254087219568).

155125003500 is an abundant number, since it is smaller than the sum of its proper divisors (353049435636).

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

155125003500 is an frugal number, since it uses more digits than its factorization.

155125003500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47330 (or 47297 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The spelling of 155125003500 in words is "one hundred fifty-five billion, one hundred twenty-five million, three thousand, five hundred".