155253000 has 128 divisors (see below), whose sum is σ = 553662720. Its totient is φ = 35481600.

The previous prime is 155252989. The next prime is 155253011. The reversal of 155253000 is 352551.

It is an interprime number because it is at equal distance from previous prime (155252989) and next prime (155253011).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17304 + ... + 24696.

It is an arithmetic number, because the mean of its divisors is an integer number (4325490).

Almost surely, 2^155253000 is an apocalyptic number.

155253000 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 155253000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276831360).

155253000 is an abundant number, since it is smaller than the sum of its proper divisors (398409720).

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

155253000 is a wasteful number, since it uses less digits than its factorization.

155253000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7424 (or 7410 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 155253000 is about 12460.0561796486. The cubic root of 155253000 is about 537.4606425121.

The spelling of 155253000 in words is "one hundred fifty-five million, two hundred fifty-three thousand".