155525262252 has 96 divisors (see below), whose sum is σ = 388372131840. Its totient is φ = 48322612800.

The previous prime is 155525262227. The next prime is 155525262301. The reversal of 155525262252 is 252262525551.

It is a super-2 number, since 2×155525262252² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5195127 + ... + 5224977.

It is an arithmetic number, because the mean of its divisors is an integer number (4045543040).

Almost surely, 2^155525262252 is an apocalyptic number.

155525262252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155525262252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194186065920).

155525262252 is an abundant number, since it is smaller than the sum of its proper divisors (232846869588).

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

155525262252 is a wasteful number, since it uses less digits than its factorization.

155525262252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30363 (or 30361 counting only the distinct ones).

The product of its digits is 600000, while the sum is 42.

The spelling of 155525262252 in words is "one hundred fifty-five billion, five hundred twenty-five million, two hundred sixty-two thousand, two hundred fifty-two".