155048520 has 128 divisors (see below), whose sum is σ = 529597440. Its totient is φ = 35946240.

The previous prime is 155048507. The next prime is 155048527. The reversal of 155048520 is 25840551.

155048520 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (155048527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27807 + ... + 32913.

It is an arithmetic number, because the mean of its divisors is an integer number (4137480).

Almost surely, 2^155048520 is an apocalyptic number.

155048520 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 155048520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264798720).

155048520 is an abundant number, since it is smaller than the sum of its proper divisors (374548920).

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

155048520 is a wasteful number, since it uses less digits than its factorization.

155048520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5155 (or 5151 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 155048520 is about 12451.8480556101. The cubic root of 155048520 is about 537.2245800069.

The spelling of 155048520 in words is "one hundred fifty-five million, forty-eight thousand, five hundred twenty".