511225611043 has 16 divisors (see below), whose sum is σ = 591031987200. Its totient is φ = 433131019776.

The previous prime is 511225610993. The next prime is 511225611077. The reversal of 511225611043 is 340116522115.

It is not a de Polignac number, because 511225611043 - 2²¹ = 511223513891 is a prime.

It is a super-2 number, since 2×511225611043² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 511225610996 and 511225611014.

It is not an unprimeable number, because it can be changed into a prime (511225611943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423771 + ... + 1096372.

It is an arithmetic number, because the mean of its divisors is an integer number (36939499200).

Almost surely, 2^511225611043 is an apocalyptic number.

511225611043 is a deficient number, since it is larger than the sum of its proper divisors (79806376157).

511225611043 is a wasteful number, since it uses less digits than its factorization.

511225611043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520706.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 511225611043 in words is "five hundred eleven billion, two hundred twenty-five million, six hundred eleven thousand, forty-three".