545055015551 has 4 divisors (see below), whose sum is σ = 545438049312. Its totient is φ = 544671981792.

The previous prime is 545055015493. The next prime is 545055015553. The reversal of 545055015551 is 155510550545.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545055015551 is a prime.

It is a super-5 number, since 5×545055015551⁵ (a number of 60 digits) contains 55555 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545055015499 and 545055015508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545055015553) 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, 191514746 + ... + 191517591.

It is an arithmetic number, because the mean of its divisors is an integer number (136359512328).

Almost surely, 2^545055015551 is an apocalyptic number.

545055015551 is a deficient number, since it is larger than the sum of its proper divisors (383033761).

545055015551 is a wasteful number, since it uses less digits than its factorization.

545055015551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383033760.

The product of its (nonzero) digits is 312500, while the sum is 41.

The spelling of 545055015551 in words is "five hundred forty-five billion, fifty-five million, fifteen thousand, five hundred fifty-one".