513111053420 has 48 divisors (see below), whose sum is σ = 1248335957568. Its totient is φ = 173513871360.

The previous prime is 513111053401. The next prime is 513111053453. The reversal of 513111053420 is 24350111315.

It is a self number, because there is not a number n which added to its sum of digits gives 513111053420.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25093061 + ... + 25113500.

It is an arithmetic number, because the mean of its divisors is an integer number (26006999116).

Almost surely, 2^513111053420 is an apocalyptic number.

It is an amenable number.

513111053420 is an abundant number, since it is smaller than the sum of its proper divisors (735224904148).

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

513111053420 is a wasteful number, since it uses less digits than its factorization.

513111053420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50206650 (or 50206648 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 513111053420 its reverse (24350111315), we get a palindrome (537461164735).

The spelling of 513111053420 in words is "five hundred thirteen billion, one hundred eleven million, fifty-three thousand, four hundred twenty".