155052630 has 80 divisors (see below), whose sum is σ = 421050960. Its totient is φ = 40938048.

The previous prime is 155052619. The next prime is 155052643. The reversal of 155052630 is 36250551.

155052630 is a `hidden beast` number, since 1 + 550 + 52 + 63 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 155052594 and 155052603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 85776 + ... + 87564.

It is an arithmetic number, because the mean of its divisors is an integer number (5263137).

Almost surely, 2^155052630 is an apocalyptic number.

155052630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 155052630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210525480).

155052630 is an abundant number, since it is smaller than the sum of its proper divisors (265998330).

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

155052630 is a wasteful number, since it uses less digits than its factorization.

155052630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915 (or 1906 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 155052630 is about 12452.0130902597. The cubic root of 155052630 is about 537.2293268511.

The spelling of 155052630 in words is "one hundred fifty-five million, fifty-two thousand, six hundred thirty".