545504557751 has 4 divisors (see below), whose sum is σ = 545507805600. Its totient is φ = 545501309904.

The previous prime is 545504557747. The next prime is 545504557753. The reversal of 545504557751 is 157755405545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 545504557751 - 2² = 545504557747 is a prime.

It is a super-2 number, since 2×545504557751² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545504557693 and 545504557702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545504557753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1357406 + ... + 1712763.

It is an arithmetic number, because the mean of its divisors is an integer number (136376951400).

Almost surely, 2^545504557751 is an apocalyptic number.

545504557751 is a deficient number, since it is larger than the sum of its proper divisors (3247849).

545504557751 is a wasteful number, since it uses less digits than its factorization.

545504557751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3247848.

The product of its (nonzero) digits is 12250000, while the sum is 53.

The spelling of 545504557751 in words is "five hundred forty-five billion, five hundred four million, five hundred fifty-seven thousand, seven hundred fifty-one".