470755561 has 2 divisors, whose sum is σ = 470755562. Its totient is φ = 470755560.

The previous prime is 470755541. The next prime is 470755633. The reversal of 470755561 is 165557074.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 469545561 + 1210000 = 21669^2 + 1100^2 .

It is a cyclic number.

It is not a de Polignac number, because 470755561 - 2⁷ = 470755433 is a prime.

It is a super-2 number, since 2×470755561² = 443221596424849442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (470755541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235377780 + 235377781.

It is an arithmetic number, because the mean of its divisors is an integer number (235377781).

Almost surely, 2^470755561 is an apocalyptic number.

It is an amenable number.

470755561 is a deficient number, since it is larger than the sum of its proper divisors (1).

470755561 is an equidigital number, since it uses as much as digits as its factorization.

470755561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 147000, while the sum is 40.

The square root of 470755561 is about 21696.9021060611. The cubic root of 470755561 is about 777.9144158802.

The spelling of 470755561 in words is "four hundred seventy million, seven hundred fifty-five thousand, five hundred sixty-one".