54520157 has 2 divisors, whose sum is σ = 54520158. Its totient is φ = 54520156.

The previous prime is 54520073. The next prime is 54520159. The reversal of 54520157 is 75102545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37039396 + 17480761 = 6086^2 + 4181^2 .

It is a cyclic number.

It is not a de Polignac number, because 54520157 - 2¹⁰ = 54519133 is a prime.

Together with 54520159, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_3255284 and since 54520157 and 3255284 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54520159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27260078 + 27260079.

It is an arithmetic number, because the mean of its divisors is an integer number (27260079).

Almost surely, 2^54520157 is an apocalyptic number.

It is an amenable number.

54520157 is a deficient number, since it is larger than the sum of its proper divisors (1).

54520157 is an equidigital number, since it uses as much as digits as its factorization.

54520157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 54520157 is about 7383.7766082134. The cubic root of 54520157 is about 379.1860625482.

It can be divided in two parts, 545 and 20157, that added together give a palindrome (20702).

The spelling of 54520157 in words is "fifty-four million, five hundred twenty thousand, one hundred fifty-seven".