53137549 has 2 divisors, whose sum is σ = 53137550. Its totient is φ = 53137548.

The previous prime is 53137519. The next prime is 53137571. The reversal of 53137549 is 94573135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46922500 + 6215049 = 6850^2 + 2493^2 .

It is a cyclic number.

It is not a de Polignac number, because 53137549 - 2⁷ = 53137421 is a prime.

It is a super-2 number, since 2×53137549² = 5647198227454802, which contains 22 as substring.

It is equal to p_3177793 and since 53137549 and 3177793 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 (53137519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26568774 + 26568775.

It is an arithmetic number, because the mean of its divisors is an integer number (26568775).

Almost surely, 2^53137549 is an apocalyptic number.

It is an amenable number.

53137549 is a deficient number, since it is larger than the sum of its proper divisors (1).

53137549 is an equidigital number, since it uses as much as digits as its factorization.

53137549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 37.

The square root of 53137549 is about 7289.5506720236. The cubic root of 53137549 is about 375.9532465068.

The spelling of 53137549 in words is "fifty-three million, one hundred thirty-seven thousand, five hundred forty-nine".