511201025666052 has 48 divisors (see below), whose sum is σ = 1221929040411072. Its totient is φ = 166239622942720.

The previous prime is 511201025665991. The next prime is 511201025666053. The reversal of 511201025666052 is 250666520102115.

It is a super-2 number, since 2×511201025666052² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 511201025665995 and 511201025666013.

It is not an unprimeable number, because it can be changed into a prime (511201025666053) 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, 3355108 + ... + 32150564.

It is an arithmetic number, because the mean of its divisors is an integer number (25456855008564).

Almost surely, 2^{511201025666052} is an apocalyptic number.

It is an amenable number.

511201025666052 is an abundant number, since it is smaller than the sum of its proper divisors (710728014745020).

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

511201025666052 is a wasteful number, since it uses less digits than its factorization.

511201025666052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28831588 (or 28831586 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 42.

Adding to 511201025666052 its reverse (250666520102115), we get a palindrome (761867545768167).

The spelling of 511201025666052 in words is "five hundred eleven trillion, two hundred one billion, twenty-five million, six hundred sixty-six thousand, fifty-two".