45551777715553 has 16 divisors (see below), whose sum is σ = 48244360050000. Its totient is φ = 42860648742912.

The previous prime is 45551777715517. The next prime is 45551777715571. The reversal of 45551777715553 is 35551777715554.

It can be written as a sum of positive squares in 8 ways, for example, as 4272604752784 + 41279172962769 = 2067028^2 + 6424887^2 .

It is a de Polignac number, because none of the positive numbers 2^k-45551777715553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45551777115553) 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, 1964358483 + ... + 1964381671.

It is an arithmetic number, because the mean of its divisors is an integer number (3015272503125).

Almost surely, 2^{45551777715553} is an apocalyptic number.

It is an amenable number.

45551777715553 is a deficient number, since it is larger than the sum of its proper divisors (2692582334447).

45551777715553 is a wasteful number, since it uses less digits than its factorization.

45551777715553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49524.

The product of its digits is 450187500, while the sum is 67.

Subtracting from 45551777715553 its reverse (35551777715554), we obtain a palindrome (9999999999999).

The spelling of 45551777715553 in words is "forty-five trillion, five hundred fifty-one billion, seven hundred seventy-seven million, seven hundred fifteen thousand, five hundred fifty-three".