53044987 has 2 divisors, whose sum is σ = 53044988. Its totient is φ = 53044986.

The previous prime is 53044967. The next prime is 53044991. The reversal of 53044987 is 78944035.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53044987 - 2¹¹ = 53042939 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53044907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26522493 + 26522494.

It is an arithmetic number, because the mean of its divisors is an integer number (26522494).

Almost surely, 2^53044987 is an apocalyptic number.

53044987 is a deficient number, since it is larger than the sum of its proper divisors (1).

53044987 is an equidigital number, since it uses as much as digits as its factorization.

53044987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 53044987 is about 7283.1989537565. The cubic root of 53044987 is about 375.7348246283.

The spelling of 53044987 in words is "fifty-three million, forty-four thousand, nine hundred eighty-seven".