15505883502452 has 24 divisors (see below), whose sum is σ = 32643965269440. Its totient is φ = 6295621872960.

The previous prime is 15505883502451. The next prime is 15505883502479. The reversal of 15505883502452 is 25420538850551.

It is a super-2 number, since 2×15505883502452² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15505883502394 and 15505883502403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15505883502451) 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, 14573198249 + ... + 14573199312.

It is an arithmetic number, because the mean of its divisors is an integer number (1360165219560).

Almost surely, 2^{15505883502452} is an apocalyptic number.

It is an amenable number.

15505883502452 is an abundant number, since it is smaller than the sum of its proper divisors (17138081766988).

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

15505883502452 is a wasteful number, since it uses less digits than its factorization.

15505883502452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29146397591 (or 29146397589 counting only the distinct ones).

The product of its (nonzero) digits is 9600000, while the sum is 53.

The spelling of 15505883502452 in words is "fifteen trillion, five hundred five billion, eight hundred eighty-three million, five hundred two thousand, four hundred fifty-two".