513541620 has 72 divisors (see below), whose sum is σ = 1615452384. Its totient is φ = 136943136.

The previous prime is 513541601. The next prime is 513541663. The reversal of 513541620 is 26145315.

513541620 is a `hidden beast` number, since 5 + 1 + 35 + 4 + 1 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47974 + ... + 57693.

Almost surely, 2^513541620 is an apocalyptic number.

It is an amenable number.

513541620 is an abundant number, since it is smaller than the sum of its proper divisors (1101910764).

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

513541620 is a wasteful number, since it uses less digits than its factorization.

513541620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105691 (or 105677 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 513541620 is about 22661.4567051635. The cubic root of 513541620 is about 800.8021225638.

Adding to 513541620 its reverse (26145315), we get a palindrome (539686935).

The spelling of 513541620 in words is "five hundred thirteen million, five hundred forty-one thousand, six hundred twenty".