45551233215553 has 16 divisors (see below), whose sum is σ = 50113608330240. Its totient is φ = 41140588222656.

The previous prime is 45551233215463. The next prime is 45551233215619. The reversal of 45551233215553 is 35551233215554.

It is a happy number.

It is not a de Polignac number, because 45551233215553 - 2³³ = 45542643280961 is a prime.

It is a super-2 number, since 2×45551233215553² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45551233215497 and 45551233215506.

It is not an unprimeable number, because it can be changed into a prime (45551233215353) 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, 8859318 + ... + 13022671.

It is an arithmetic number, because the mean of its divisors is an integer number (3132100520640).

Almost surely, 2^{45551233215553} is an apocalyptic number.

It is an amenable number.

45551233215553 is a deficient number, since it is larger than the sum of its proper divisors (4562375114687).

45551233215553 is a wasteful number, since it uses less digits than its factorization.

45551233215553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21885456.

The product of its digits is 6750000, while the sum is 49.

Subtracting from 45551233215553 its reverse (35551233215554), we obtain a palindrome (9999999999999).

The spelling of 45551233215553 in words is "forty-five trillion, five hundred fifty-one billion, two hundred thirty-three million, two hundred fifteen thousand, five hundred fifty-three".