54878507 has 2 divisors, whose sum is σ = 54878508. Its totient is φ = 54878506.

The previous prime is 54878497. The next prime is 54878513. The reversal of 54878507 is 70587845.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54878507 - 2⁴ = 54878491 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54871507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27439253 + 27439254.

It is an arithmetic number, because the mean of its divisors is an integer number (27439254).

Almost surely, 2^54878507 is an apocalyptic number.

54878507 is a deficient number, since it is larger than the sum of its proper divisors (1).

54878507 is an equidigital number, since it uses as much as digits as its factorization.

54878507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 313600, while the sum is 44.

The square root of 54878507 is about 7408.0029022673. The cubic root of 54878507 is about 380.0150201819.

The spelling of 54878507 in words is "fifty-four million, eight hundred seventy-eight thousand, five hundred seven".