513232555 has 8 divisors (see below), whose sum is σ = 671868144. Its totient is φ = 373260000.

The previous prime is 513232543. The next prime is 513232561. The reversal of 513232555 is 555232315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 513232555 - 2⁵ = 513232523 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4665696 + ... + 4665805.

It is an arithmetic number, because the mean of its divisors is an integer number (83983518).

Almost surely, 2^513232555 is an apocalyptic number.

513232555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

513232555 is a deficient number, since it is larger than the sum of its proper divisors (158635589).

513232555 is a wasteful number, since it uses less digits than its factorization.

513232555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9331517.

The product of its digits is 22500, while the sum is 31.

The square root of 513232555 is about 22654.6365011668. The cubic root of 513232555 is about 800.6414412831.

The spelling of 513232555 in words is "five hundred thirteen million, two hundred thirty-two thousand, five hundred fifty-five".