355472561 has 4 divisors (see below), whose sum is σ = 358186224. Its totient is φ = 352758900.

The previous prime is 355472531. The next prime is 355472563. The reversal of 355472561 is 165274553.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 355472561 - 2¹⁰ = 355471537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355472563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1356635 + ... + 1356896.

It is an arithmetic number, because the mean of its divisors is an integer number (89546556).

Almost surely, 2^355472561 is an apocalyptic number.

It is an amenable number.

355472561 is a deficient number, since it is larger than the sum of its proper divisors (2713663).

355472561 is a wasteful number, since it uses less digits than its factorization.

355472561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713662.

The product of its digits is 126000, while the sum is 38.

The square root of 355472561 is about 18853.9799777129. The cubic root of 355472561 is about 708.3839200350.

The spelling of 355472561 in words is "three hundred fifty-five million, four hundred seventy-two thousand, five hundred sixty-one".