3125550 has 48 divisors (see below), whose sum is σ = 7892352. Its totient is φ = 818400.

The previous prime is 3125537. The next prime is 3125561. The reversal of 3125550 is 555213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9895 + ... + 10205.

It is an arithmetic number, because the mean of its divisors is an integer number (164424).

Almost surely, 2^3125550 is an apocalyptic number.

3125550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3125550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3946176).

3125550 is an abundant number, since it is smaller than the sum of its proper divisors (4766802).

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

3125550 is a wasteful number, since it uses less digits than its factorization.

3125550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 3125550 is about 1767.9225096140. The cubic root of 3125550 is about 146.2094635262.

The spelling of 3125550 in words is "three million, one hundred twenty-five thousand, five hundred fifty".