155313552 has 40 divisors (see below), whose sum is σ = 401675680. Its totient is φ = 51713280.

The previous prime is 155313551. The next prime is 155313563. The reversal of 155313552 is 255313551.

It is not an unprimeable number, because it can be changed into a prime (155313551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76227 + ... + 78237.

It is an arithmetic number, because the mean of its divisors is an integer number (10041892).

Almost surely, 2^155313552 is an apocalyptic number.

155313552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155313552 is an abundant number, since it is smaller than the sum of its proper divisors (246362128).

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

155313552 is a wasteful number, since it uses less digits than its factorization.

155313552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3631 (or 3625 counting only the distinct ones).

The product of its digits is 11250, while the sum is 30.

The square root of 155313552 is about 12462.4857873540. The cubic root of 155313552 is about 537.5305071561.

Subtracting 155313552 from its reverse (255313551), we obtain a palindrome (99999999).

The spelling of 155313552 in words is "one hundred fifty-five million, three hundred thirteen thousand, five hundred fifty-two".