475051261 has 2 divisors, whose sum is σ = 475051262. Its totient is φ = 475051260.

The previous prime is 475051219. The next prime is 475051267. The reversal of 475051261 is 162150574.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 459888025 + 15163236 = 21445^2 + 3894^2 .

It is a cyclic number.

It is not a de Polignac number, because 475051261 - 2¹³ = 475043069 is a prime.

It is a Chen prime.

It is equal to p_25108384 and since 475051261 and 25108384 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (475051267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237525630 + 237525631.

It is an arithmetic number, because the mean of its divisors is an integer number (237525631).

Almost surely, 2^475051261 is an apocalyptic number.

It is an amenable number.

475051261 is a deficient number, since it is larger than the sum of its proper divisors (1).

475051261 is an equidigital number, since it uses as much as digits as its factorization.

475051261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 475051261 is about 21795.6706939704. The cubic root of 475051261 is about 780.2734418238.

The spelling of 475051261 in words is "four hundred seventy-five million, fifty-one thousand, two hundred sixty-one".