511249480 has 32 divisors (see below), whose sum is σ = 1314642240. Its totient is φ = 175285440.

The previous prime is 511249477. The next prime is 511249481. The reversal of 511249480 is 84942115.

It is a happy number.

It is a super-2 number, since 2×511249480² = 522752061600540800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511249481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 912666 + ... + 913225.

It is an arithmetic number, because the mean of its divisors is an integer number (41082570).

Almost surely, 2^511249480 is an apocalyptic number.

It is an amenable number.

511249480 is an abundant number, since it is smaller than the sum of its proper divisors (803392760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

511249480 is a wasteful number, since it uses less digits than its factorization.

511249480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825909 (or 1825905 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 511249480 is about 22610.8266102768. The cubic root of 511249480 is about 799.6089130115.

The spelling of 511249480 in words is "five hundred eleven million, two hundred forty-nine thousand, four hundred eighty".