550387025 has 24 divisors (see below), whose sum is σ = 703534584. Its totient is φ = 426816000.

The previous prime is 550387009. The next prime is 550387037. The reversal of 550387025 is 520783055.

It can be written as a sum of positive squares in 12 ways, for example, as 340919296 + 209467729 = 18464^2 + 14473^2 .

It is not a de Polignac number, because 550387025 - 2⁴ = 550387009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288575 + ... + 290475.

It is an arithmetic number, because the mean of its divisors is an integer number (29313941).

Almost surely, 2^550387025 is an apocalyptic number.

It is an amenable number.

550387025 is a deficient number, since it is larger than the sum of its proper divisors (153147559).

550387025 is a wasteful number, since it uses less digits than its factorization.

550387025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261 (or 2256 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 550387025 is about 23460.3287487622. The cubic root of 550387025 is about 819.5134060341.

The spelling of 550387025 in words is "five hundred fifty million, three hundred eighty-seven thousand, twenty-five".