155382650 has 24 divisors (see below), whose sum is σ = 295737024. Its totient is φ = 60706800.

The previous prime is 155382631. The next prime is 155382653. The reversal of 155382650 is 56283551.

It is a self number, because there is not a number n which added to its sum of digits gives 155382650.

It is not an unprimeable number, because it can be changed into a prime (155382653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33986 + ... + 38285.

It is an arithmetic number, because the mean of its divisors is an integer number (12322376).

Almost surely, 2^155382650 is an apocalyptic number.

155382650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155382650 is a deficient number, since it is larger than the sum of its proper divisors (140354374).

155382650 is a wasteful number, since it uses less digits than its factorization.

155382650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72326 (or 72321 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 155382650 is about 12465.2577189563. The cubic root of 155382650 is about 537.6102099589.

Subtracting from 155382650 its reverse (56283551), we obtain a palindrome (99099099).

The spelling of 155382650 in words is "one hundred fifty-five million, three hundred eighty-two thousand, six hundred fifty".