155224480 has 48 divisors (see below), whose sum is σ = 369653760. Its totient is φ = 61592832.

The previous prime is 155224463. The next prime is 155224481. The reversal of 155224480 is 84422551.

It is not an unprimeable number, because it can be changed into a prime (155224481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16501 + ... + 24139.

It is an arithmetic number, because the mean of its divisors is an integer number (7701120).

Almost surely, 2^155224480 is an apocalyptic number.

155224480 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 155224480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184826880).

155224480 is an abundant number, since it is smaller than the sum of its proper divisors (214429280).

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

155224480 is a wasteful number, since it uses less digits than its factorization.

155224480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7781 (or 7773 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 155224480 is about 12458.9116699654. The cubic root of 155224480 is about 537.4277299624.

It can be divided in two parts, 15522 and 4480, that added together give a palindrome (20002).

The spelling of 155224480 in words is "one hundred fifty-five million, two hundred twenty-four thousand, four hundred eighty".