513250541 has 4 divisors (see below), whose sum is σ = 513318300. Its totient is φ = 513182784.

The previous prime is 513250513. The next prime is 513250547. The reversal of 513250541 is 145052315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145052315 = 5 ⋅29010463.

It can be written as a sum of positive squares in 2 ways, for example, as 428076100 + 85174441 = 20690^2 + 9229^2 .

It is a cyclic number.

It is not a de Polignac number, because 513250541 - 2¹⁴ = 513234157 is a prime.

It is a super-2 number, since 2×513250541² = 526852235673585362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 513250541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513250547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20846 + ... + 38223.

It is an arithmetic number, because the mean of its divisors is an integer number (128329575).

Almost surely, 2^513250541 is an apocalyptic number.

It is an amenable number.

513250541 is a deficient number, since it is larger than the sum of its proper divisors (67759).

513250541 is an equidigital number, since it uses as much as digits as its factorization.

513250541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67758.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 513250541 is about 22655.0334583730. The cubic root of 513250541 is about 800.6507938781.

The spelling of 513250541 in words is "five hundred thirteen million, two hundred fifty thousand, five hundred forty-one".