545392457 has 2 divisors, whose sum is σ = 545392458. Its totient is φ = 545392456.

The previous prime is 545392447. The next prime is 545392501. The reversal of 545392457 is 754293545.

It is an a-pointer prime, because the next prime (545392501) can be obtained adding 545392457 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 525509776 + 19882681 = 22924^2 + 4459^2 .

It is a cyclic number.

It is not a de Polignac number, because 545392457 - 2⁸ = 545392201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (545392427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272696228 + 272696229.

It is an arithmetic number, because the mean of its divisors is an integer number (272696229).

Almost surely, 2^545392457 is an apocalyptic number.

It is an amenable number.

545392457 is a deficient number, since it is larger than the sum of its proper divisors (1).

545392457 is an equidigital number, since it uses as much as digits as its factorization.

545392457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756000, while the sum is 44.

The square root of 545392457 is about 23353.6390526188. The cubic root of 545392457 is about 817.0269378828.

The spelling of 545392457 in words is "five hundred forty-five million, three hundred ninety-two thousand, four hundred fifty-seven".