215353045553 has 8 divisors (see below), whose sum is σ = 228025405440. Its totient is φ = 202681189440.

The previous prime is 215353045541. The next prime is 215353045603. The reversal of 215353045553 is 355540353512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-215353045553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 215353045553.

It is not an unprimeable number, because it can be changed into a prime (215353045253) 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, 1089248 + ... + 1271678.

It is an arithmetic number, because the mean of its divisors is an integer number (28503175680).

Almost surely, 2^215353045553 is an apocalyptic number.

It is an amenable number.

215353045553 is a deficient number, since it is larger than the sum of its proper divisors (12672359887).

215353045553 is a wasteful number, since it uses less digits than its factorization.

215353045553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251887.

The product of its (nonzero) digits is 675000, while the sum is 41.

The spelling of 215353045553 in words is "two hundred fifteen billion, three hundred fifty-three million, forty-five thousand, five hundred fifty-three".