155513252000 has 192 divisors, whose sum is σ = 403270358400. Its totient is φ = 58775500800.

The previous prime is 155513251987. The next prime is 155513252009. The reversal of 155513252000 is 252315551.

It is not an unprimeable number, because it can be changed into a prime (155513252009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31081499 + ... + 31086501.

It is an arithmetic number, because the mean of its divisors is an integer number (2100366450).

Almost surely, 2^155513252000 is an apocalyptic number.

155513252000 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 155513252000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201635179200).

155513252000 is an abundant number, since it is smaller than the sum of its proper divisors (247757106400).

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

155513252000 is a wasteful number, since it uses less digits than its factorization.

155513252000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5456 (or 5438 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

Adding to 155513252000 its reverse (252315551), we get a palindrome (155765567551).

The spelling of 155513252000 in words is "one hundred fifty-five billion, five hundred thirteen million, two hundred fifty-two thousand".