513340254 has 160 divisors (see below), whose sum is σ = 1376286912. Its totient is φ = 139968000.

The previous prime is 513340207. The next prime is 513340259. The reversal of 513340254 is 452043315.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513340259) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2836044 + ... + 2836224.

Almost surely, 2^513340254 is an apocalyptic number.

513340254 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 513340254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (688143456).

513340254 is an abundant number, since it is smaller than the sum of its proper divisors (862946658).

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

513340254 is a wasteful number, since it uses less digits than its factorization.

513340254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 513340254 is about 22657.0133512782. The cubic root of 513340254 is about 800.6974407521.

Adding to 513340254 its reverse (452043315), we get a palindrome (965383569).

The spelling of 513340254 in words is "five hundred thirteen million, three hundred forty thousand, two hundred fifty-four".