513561463 has 2 divisors, whose sum is σ = 513561464. Its totient is φ = 513561462.

The previous prime is 513561439. The next prime is 513561479. The reversal of 513561463 is 364165315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513561463 - 2²¹ = 511464311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513561403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256780731 + 256780732.

It is an arithmetic number, because the mean of its divisors is an integer number (256780732).

Almost surely, 2^513561463 is an apocalyptic number.

513561463 is a deficient number, since it is larger than the sum of its proper divisors (1).

513561463 is an equidigital number, since it uses as much as digits as its factorization.

513561463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 34.

The square root of 513561463 is about 22661.8945148017. The cubic root of 513561463 is about 800.8124366333.

The spelling of 513561463 in words is "five hundred thirteen million, five hundred sixty-one thousand, four hundred sixty-three".