3551250 has 40 divisors (see below), whose sum is σ = 8884656. Its totient is φ = 946000.

The previous prime is 3551243. The next prime is 3551257. The reversal of 3551250 is 521553.

It is an interprime number because it is at equal distance from previous prime (3551243) and next prime (3551257).

It is a super-2 number, since 2×3551250² = 25222753125000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3551257) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3277 + ... + 4223.

Almost surely, 2^3551250 is an apocalyptic number.

3551250 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 3551250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4442328).

3551250 is an abundant number, since it is smaller than the sum of its proper divisors (5333406).

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

3551250 is an equidigital number, since it uses as much as digits as its factorization.

3551250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972 (or 957 counting only the distinct ones).

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

The square root of 3551250 is about 1884.4760545043. The cubic root of 3551250 is about 152.5669329047.

The spelling of 3551250 in words is "three million, five hundred fifty-one thousand, two hundred fifty".