550555305525 has 18 divisors (see below), whose sum is σ = 986105725410. Its totient is φ = 293629496160.

The previous prime is 550555305499. The next prime is 550555305539. The reversal of 550555305525 is 525503555055.

It can be written as a sum of positive squares in 3 ways, for example, as 63605344401 + 486949961124 = 252201^2 + 697818^2 .

It is not a de Polignac number, because 550555305525 - 2⁷ = 550555305397 is a prime.

It is a super-2 number, since 2×550555305525² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1223456010 + ... + 1223456459.

Almost surely, 2^550555305525 is an apocalyptic number.

It is an amenable number.

550555305525 is a deficient number, since it is larger than the sum of its proper divisors (435550419885).

550555305525 is a wasteful number, since it uses less digits than its factorization.

550555305525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2446912485 (or 2446912477 counting only the distinct ones).

The product of its (nonzero) digits is 2343750, while the sum is 45.

The spelling of 550555305525 in words is "five hundred fifty billion, five hundred fifty-five million, three hundred five thousand, five hundred twenty-five".