53740087 has 2 divisors, whose sum is σ = 53740088. Its totient is φ = 53740086.

The previous prime is 53740079. The next prime is 53740123. The reversal of 53740087 is 78004735.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53740087 - 2³ = 53740079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53740007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26870043 + 26870044.

It is an arithmetic number, because the mean of its divisors is an integer number (26870044).

Almost surely, 2^53740087 is an apocalyptic number.

53740087 is a deficient number, since it is larger than the sum of its proper divisors (1).

53740087 is an equidigital number, since it uses as much as digits as its factorization.

53740087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 53740087 is about 7330.7630571449. The cubic root of 53740087 is about 377.3689137420.

The spelling of 53740087 in words is "fifty-three million, seven hundred forty thousand, eighty-seven".