155250432 has 90 divisors (see below), whose sum is σ = 462990528. Its totient is φ = 51743232.

The previous prime is 155250419. The next prime is 155250451. The reversal of 155250432 is 234052551.

It is a happy number.

155250432 is a `hidden beast` number, since 155 + 2 + 504 + 3 + 2 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 155250396 and 155250405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16993 + ... + 24479.

Almost surely, 2^155250432 is an apocalyptic number.

155250432 is a gapful number since it is divisible by the number (12) 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 155250432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231495264).

155250432 is an abundant number, since it is smaller than the sum of its proper divisors (307740096).

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

155250432 is an frugal number, since it uses more digits than its factorization.

155250432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7515 (or 7492 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 155250432 is about 12459.9531299279. The cubic root of 155250432 is about 537.4576791629.

It can be divided in two parts, 1552 and 50432, that added together give a square (51984 = 228²).

The spelling of 155250432 in words is "one hundred fifty-five million, two hundred fifty thousand, four hundred thirty-two".