155512002 has 16 divisors (see below), whose sum is σ = 317642112. Its totient is φ = 50734320.

The previous prime is 155512001. The next prime is 155512003. The reversal of 155512002 is 200215551.

It is an interprime number because it is at equal distance from previous prime (155512001) and next prime (155512003).

It is a self number, because there is not a number n which added to its sum of digits gives 155512002.

It is not an unprimeable number, because it can be changed into a prime (155512001) 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, 275449 + ... + 276012.

It is an arithmetic number, because the mean of its divisors is an integer number (19852632).

Almost surely, 2^155512002 is an apocalyptic number.

155512002 is an abundant number, since it is smaller than the sum of its proper divisors (162130110).

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

155512002 is a wasteful number, since it uses less digits than its factorization.

155512002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551513.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 155512002 is about 12470.4451404110. The cubic root of 155512002 is about 537.7593507367.

Adding to 155512002 its reverse (200215551), we get a palindrome (355727553).

The spelling of 155512002 in words is "one hundred fifty-five million, five hundred twelve thousand, two".