155525205210452 has 48 divisors (see below), whose sum is σ = 339331654717440. Its totient is φ = 60593533250400.

The previous prime is 155525205210449. The next prime is 155525205210457. The reversal of 155525205210452 is 254012502525551.

It is a super-2 number, since 2×155525205210452² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155525205210457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24084677 + ... + 29851667.

It is an arithmetic number, because the mean of its divisors is an integer number (7069409473280).

Almost surely, 2^{155525205210452} is an apocalyptic number.

It is an amenable number.

155525205210452 is an abundant number, since it is smaller than the sum of its proper divisors (183806449506988).

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

155525205210452 is a wasteful number, since it uses less digits than its factorization.

155525205210452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5854572 (or 5854570 counting only the distinct ones).

The product of its (nonzero) digits is 1000000, while the sum is 44.

The spelling of 155525205210452 in words is "one hundred fifty-five trillion, five hundred twenty-five billion, two hundred five million, two hundred ten thousand, four hundred fifty-two".