54002491 has 2 divisors, whose sum is σ = 54002492. Its totient is φ = 54002490.

The previous prime is 54002477. The next prime is 54002497. The reversal of 54002491 is 19420045.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54002491 - 2⁷ = 54002363 is a prime.

It is not a weakly prime, because it can be changed into another prime (54002497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27001245 + 27001246.

It is an arithmetic number, because the mean of its divisors is an integer number (27001246).

Almost surely, 2^54002491 is an apocalyptic number.

54002491 is a deficient number, since it is larger than the sum of its proper divisors (1).

54002491 is an equidigital number, since it uses as much as digits as its factorization.

54002491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 54002491 is about 7348.6387174769. The cubic root of 54002491 is about 377.9821268482.

The spelling of 54002491 in words is "fifty-four million, two thousand, four hundred ninety-one".