513672765 has 32 divisors (see below), whose sum is σ = 884514816. Its totient is φ = 253608960.

The previous prime is 513672763. The next prime is 513672787. The reversal of 513672765 is 567276315.

It is not a de Polignac number, because 513672765 - 2¹ = 513672763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513672763) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 957 + ... + 32066.

It is an arithmetic number, because the mean of its divisors is an integer number (27641088).

Almost surely, 2^513672765 is an apocalyptic number.

It is an amenable number.

513672765 is a deficient number, since it is larger than the sum of its proper divisors (370842051).

513672765 is a wasteful number, since it uses less digits than its factorization.

513672765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33109.

The product of its digits is 264600, while the sum is 42.

The square root of 513672765 is about 22664.3500899540. The cubic root of 513672765 is about 800.8702846832.

The spelling of 513672765 in words is "five hundred thirteen million, six hundred seventy-two thousand, seven hundred sixty-five".