3551231401 has 8 divisors (see below), whose sum is σ = 3592972040. Its totient is φ = 3509595648.

The previous prime is 3551231329. The next prime is 3551231413. The reversal of 3551231401 is 1041321553.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16810000 + 3534421401 = 4100^2 + 59451^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3551231401 - 2⁷ = 3551231273 is a prime.

It is a super-2 number, since 2×3551231401² = 25222488926896845602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3551231501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42955 + ... + 94591.

It is an arithmetic number, because the mean of its divisors is an integer number (449121505).

Almost surely, 2^3551231401 is an apocalyptic number.

It is an amenable number.

3551231401 is a deficient number, since it is larger than the sum of its proper divisors (41740639).

3551231401 is an equidigital number, since it uses as much as digits as its factorization.

3551231401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52443.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 3551231401 is about 59592.2092307375. The cubic root of 3551231401 is about 1525.6666655741. Note that the first 5 decimals are identical.

Adding to 3551231401 its reverse (1041321553), we get a palindrome (4592552954).

The spelling of 3551231401 in words is "three billion, five hundred fifty-one million, two hundred thirty-one thousand, four hundred one".