511471477 has 6 divisors (see below), whose sum is σ = 562196054. Its totient is φ = 464973960.

The previous prime is 511471439. The next prime is 511471483. The reversal of 511471477 is 774174115.

It can be written as a sum of positive squares in only one way, i.e., 481100356 + 30371121 = 21934^2 + 5511^2 .

It is not a de Polignac number, because 511471477 - 2⁷ = 511471349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511471427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2113398 + ... + 2113639.

Almost surely, 2^511471477 is an apocalyptic number.

It is an amenable number.

511471477 is a deficient number, since it is larger than the sum of its proper divisors (50724577).

511471477 is a wasteful number, since it uses less digits than its factorization.

511471477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4227059 (or 4227048 counting only the distinct ones).

The product of its digits is 27440, while the sum is 37.

The square root of 511471477 is about 22615.7351638190. The cubic root of 511471477 is about 799.7246328312.

The spelling of 511471477 in words is "five hundred eleven million, four hundred seventy-one thousand, four hundred seventy-seven".