54487157 has 2 divisors, whose sum is σ = 54487158. Its totient is φ = 54487156.

The previous prime is 54487129. The next prime is 54487187. The reversal of 54487157 is 75178445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45778756 + 8708401 = 6766^2 + 2951^2 .

It is a cyclic number.

It is not a de Polignac number, because 54487157 - 2¹⁸ = 54225013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54487187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27243578 + 27243579.

It is an arithmetic number, because the mean of its divisors is an integer number (27243579).

Almost surely, 2^54487157 is an apocalyptic number.

It is an amenable number.

54487157 is a deficient number, since it is larger than the sum of its proper divisors (1).

54487157 is an equidigital number, since it uses as much as digits as its factorization.

54487157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 156800, while the sum is 41.

The square root of 54487157 is about 7381.5416411479. The cubic root of 54487157 is about 379.1095424361.

The spelling of 54487157 in words is "fifty-four million, four hundred eighty-seven thousand, one hundred fifty-seven".