511223041625 has 64 divisors (see below), whose sum is σ = 715871520000. Its totient is φ = 362210227200.

The previous prime is 511223041613. The next prime is 511223041627. The reversal of 511223041625 is 526140322115.

It is not a de Polignac number, because 511223041625 - 2²⁶ = 511155932761 is a prime.

It is a super-2 number, since 2×511223041625² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 511223041591 and 511223041600.

It is not an unprimeable number, because it can be changed into a prime (511223041627) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 5973386 + ... + 6058364.

It is an arithmetic number, because the mean of its divisors is an integer number (11185492500).

Almost surely, 2^511223041625 is an apocalyptic number.

It is an amenable number.

511223041625 is a deficient number, since it is larger than the sum of its proper divisors (204648478375).

511223041625 is a wasteful number, since it uses less digits than its factorization.

511223041625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85179 (or 85169 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 511223041625 in words is "five hundred eleven billion, two hundred twenty-three million, forty-one thousand, six hundred twenty-five".