155615562 has 48 divisors (see below), whose sum is σ = 361370880. Its totient is φ = 48270816.

The previous prime is 155615561. The next prime is 155615587. The reversal of 155615562 is 265516551.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (155615561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10239 + ... + 20397.

It is an arithmetic number, because the mean of its divisors is an integer number (7528560).

Almost surely, 2^155615562 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155615562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180685440).

155615562 is an abundant number, since it is smaller than the sum of its proper divisors (205755318).

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

155615562 is a wasteful number, since it uses less digits than its factorization.

155615562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10227 (or 10224 counting only the distinct ones).

The product of its digits is 45000, while the sum is 36.

The square root of 155615562 is about 12474.5966668265. The cubic root of 155615562 is about 537.8786941534.

The spelling of 155615562 in words is "one hundred fifty-five million, six hundred fifteen thousand, five hundred sixty-two".