350003561 has 4 divisors (see below), whose sum is σ = 350106000. Its totient is φ = 349901124.

The previous prime is 350003551. The next prime is 350003567. The reversal of 350003561 is 165300053.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 165300053 = 37 ⋅4467569.

It is a cyclic number.

It is not a de Polignac number, because 350003561 - 2²⁶ = 282894697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (350003567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45911 + ... + 52988.

It is an arithmetic number, because the mean of its divisors is an integer number (87526500).

Almost surely, 2^350003561 is an apocalyptic number.

It is an amenable number.

350003561 is a deficient number, since it is larger than the sum of its proper divisors (102439).

350003561 is an equidigital number, since it uses as much as digits as its factorization.

350003561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102438.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 350003561 is about 18708.3821053559. The cubic root of 350003561 is about 704.7322632394.

The spelling of 350003561 in words is "three hundred fifty million, three thousand, five hundred sixty-one".