545257451 has 2 divisors, whose sum is σ = 545257452. Its totient is φ = 545257450.

The previous prime is 545257429. The next prime is 545257463. The reversal of 545257451 is 154752545.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545257451 is a prime.

It is not a weakly prime, because it can be changed into another prime (545257411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272628725 + 272628726.

It is an arithmetic number, because the mean of its divisors is an integer number (272628726).

Almost surely, 2^545257451 is an apocalyptic number.

545257451 is a deficient number, since it is larger than the sum of its proper divisors (1).

545257451 is an equidigital number, since it uses as much as digits as its factorization.

545257451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 140000, while the sum is 38.

The square root of 545257451 is about 23350.7484034238. The cubic root of 545257451 is about 816.9595169275.

The spelling of 545257451 in words is "five hundred forty-five million, two hundred fifty-seven thousand, four hundred fifty-one".