215453533552 has 20 divisors (see below), whose sum is σ = 417549682600. Its totient is φ = 107698776768.

The previous prime is 215453533549. The next prime is 215453533567. The reversal of 215453533552 is 255335354512.

It is a junction number, because it is equal to n+sod(n) for n = 215453533499 and 215453533508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1685802 + ... + 1809097.

It is an arithmetic number, because the mean of its divisors is an integer number (20877484130).

Almost surely, 2^215453533552 is an apocalyptic number.

It is an amenable number.

215453533552 is a deficient number, since it is larger than the sum of its proper divisors (202096149048).

215453533552 is a wasteful number, since it uses less digits than its factorization.

215453533552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3498760 (or 3498754 counting only the distinct ones).

The product of its digits is 1350000, while the sum is 43.

The spelling of 215453533552 in words is "two hundred fifteen billion, four hundred fifty-three million, five hundred thirty-three thousand, five hundred fifty-two".