511055145 has 24 divisors (see below), whose sum is σ = 886459392. Its totient is φ = 272368800.

The previous prime is 511055143. The next prime is 511055161. The reversal of 511055145 is 541550115.

511055145 is a `hidden beast` number, since 511 + 0 + 5 + 5 + 145 = 666.

It is not a de Polignac number, because 511055145 - 2¹ = 511055143 is a prime.

It is a super-2 number, since 2×511055145² = 522354722461942050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511055143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78360 + ... + 84630.

It is an arithmetic number, because the mean of its divisors is an integer number (36935808).

Almost surely, 2^511055145 is an apocalyptic number.

It is an amenable number.

511055145 is a deficient number, since it is larger than the sum of its proper divisors (375404247).

511055145 is a wasteful number, since it uses less digits than its factorization.

511055145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8093 (or 8090 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The square root of 511055145 is about 22606.5288135972. The cubic root of 511055145 is about 799.5075849923.

The spelling of 511055145 in words is "five hundred eleven million, fifty-five thousand, one hundred forty-five".