2505572550 has 72 divisors (see below), whose sum is σ = 7249473504. Its totient is φ = 616754880.

The previous prime is 2505572539. The next prime is 2505572561. The reversal of 2505572550 is 552755052.

2505572550 is a `hidden beast` number, since 2 + 50 + 5 + 57 + 2 + 550 = 666.

It is an interprime number because it is at equal distance from previous prime (2505572539) and next prime (2505572561).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 208302 + ... + 220001.

It is an arithmetic number, because the mean of its divisors is an integer number (100687132).

Almost surely, 2^2505572550 is an apocalyptic number.

2505572550 is an abundant number, since it is smaller than the sum of its proper divisors (4743900954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2505572550 is a wasteful number, since it uses less digits than its factorization.

2505572550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428334 (or 428326 counting only the distinct ones).

The product of its (nonzero) digits is 87500, while the sum is 36.

The square root of 2505572550 is about 50055.6944812476. The cubic root of 2505572550 is about 1358.2164751573.

The spelling of 2505572550 in words is "two billion, five hundred five million, five hundred seventy-two thousand, five hundred fifty".