54681157 has 2 divisors, whose sum is σ = 54681158. Its totient is φ = 54681156.

The previous prime is 54681149. The next prime is 54681169. The reversal of 54681157 is 75118645.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51753636 + 2927521 = 7194^2 + 1711^2 .

It is a cyclic number.

It is not a de Polignac number, because 54681157 - 2³ = 54681149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54681127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27340578 + 27340579.

It is an arithmetic number, because the mean of its divisors is an integer number (27340579).

Almost surely, 2^54681157 is an apocalyptic number.

It is an amenable number.

54681157 is a deficient number, since it is larger than the sum of its proper divisors (1).

54681157 is an equidigital number, since it uses as much as digits as its factorization.

54681157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 37.

The square root of 54681157 is about 7394.6708513632. The cubic root of 54681157 is about 379.5589458055.

The spelling of 54681157 in words is "fifty-four million, six hundred eighty-one thousand, one hundred fifty-seven".