511113505125 has 32 divisors (see below), whose sum is σ = 879820231680. Its totient is φ = 263194075200.

The previous prime is 511113505109. The next prime is 511113505159. The reversal of 511113505125 is 521505311115.

It is not a de Polignac number, because 511113505125 - 2⁴ = 511113505109 is a prime.

It is a super-2 number, since 2×511113505125² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 511113505092 and 511113505101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23488597 + ... + 23510346.

It is an arithmetic number, because the mean of its divisors is an integer number (27494382240).

Almost surely, 2^511113505125 is an apocalyptic number.

It is an amenable number.

511113505125 is a deficient number, since it is larger than the sum of its proper divisors (368706726555).

511113505125 is a wasteful number, since it uses less digits than its factorization.

511113505125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46998990 (or 46998980 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 511113505125 in words is "five hundred eleven billion, one hundred thirteen million, five hundred five thousand, one hundred twenty-five".