515193965 has 48 divisors (see below), whose sum is σ = 747869760. Its totient is φ = 337559040.

The previous prime is 515193953. The next prime is 515193967. The reversal of 515193965 is 569391515.

It is not a de Polignac number, because 515193965 - 2⁶ = 515193901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515193967) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 399041 + ... + 400329.

It is an arithmetic number, because the mean of its divisors is an integer number (15580620).

Almost surely, 2^515193965 is an apocalyptic number.

515193965 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

515193965 is a deficient number, since it is larger than the sum of its proper divisors (232675795).

515193965 is a wasteful number, since it uses less digits than its factorization.

515193965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374 (or 1361 counting only the distinct ones).

The product of its digits is 182250, while the sum is 44.

The square root of 515193965 is about 22697.8845930629. The cubic root of 515193965 is about 801.6600762383.

The spelling of 515193965 in words is "five hundred fifteen million, one hundred ninety-three thousand, nine hundred sixty-five".