30551401 has 4 divisors (see below), whose sum is σ = 30590532. Its totient is φ = 30512272.

The previous prime is 30551359. The next prime is 30551419. The reversal of 30551401 is 10415503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17842176 + 12709225 = 4224^2 + 3565^2 .

It is a cyclic number.

It is not a de Polignac number, because 30551401 - 2¹⁵ = 30518633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30551491) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 18370 + ... + 19963.

It is an arithmetic number, because the mean of its divisors is an integer number (7647633).

Almost surely, 2^30551401 is an apocalyptic number.

It is an amenable number.

30551401 is a deficient number, since it is larger than the sum of its proper divisors (39131).

30551401 is an equidigital number, since it uses as much as digits as its factorization.

30551401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39130.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 30551401 is about 5527.3321774614. The cubic root of 30551401 is about 312.6154061220.

Adding to 30551401 its reverse (10415503), we get a palindrome (40966904).

The spelling of 30551401 in words is "thirty million, five hundred fifty-one thousand, four hundred one".