155530630 has 16 divisors (see below), whose sum is σ = 286784064. Its totient is φ = 60694720.

The previous prime is 155530591. The next prime is 155530631. The reversal of 155530630 is 36035551.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155530631) 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, 189262 + ... + 190081.

It is an arithmetic number, because the mean of its divisors is an integer number (17924004).

Almost surely, 2^155530630 is an apocalyptic number.

155530630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155530630 is a deficient number, since it is larger than the sum of its proper divisors (131253434).

155530630 is a wasteful number, since it uses less digits than its factorization.

155530630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379391.

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 155530630 is about 12471.1920039746. The cubic root of 155530630 is about 537.7808217080.

The spelling of 155530630 in words is "one hundred fifty-five million, five hundred thirty thousand, six hundred thirty".