3551257890 has 112 divisors (see below), whose sum is σ = 10088827200. Its totient is φ = 897124896.

The previous prime is 3551257867. The next prime is 3551257903. The reversal of 3551257890 is 987521553.

3551257890 is a `hidden beast` number, since 3 + 5 + 512 + 57 + 89 + 0 = 666.

It is a super-2 number, since 2×3551257890² = 25222865202574504200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 125691 + ... + 151329.

Almost surely, 2^3551257890 is an apocalyptic number.

3551257890 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 3551257890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5044413600).

3551257890 is an abundant number, since it is smaller than the sum of its proper divisors (6537569310).

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

3551257890 is a wasteful number, since it uses less digits than its factorization.

3551257890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25683 (or 25668 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The square root of 3551257890 is about 59592.4314825297. The cubic root of 3551257890 is about 1525.6704589328.

The spelling of 3551257890 in words is "three billion, five hundred fifty-one million, two hundred fifty-seven thousand, eight hundred ninety".