53878757 has 2 divisors, whose sum is σ = 53878758. Its totient is φ = 53878756.

The previous prime is 53878717. The next prime is 53878801. The reversal of 53878757 is 75787835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52983841 + 894916 = 7279^2 + 946^2 .

It is a cyclic number.

It is not a de Polignac number, because 53878757 - 2⁸ = 53878501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53878717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26939378 + 26939379.

It is an arithmetic number, because the mean of its divisors is an integer number (26939379).

Almost surely, 2^53878757 is an apocalyptic number.

It is an amenable number.

53878757 is a deficient number, since it is larger than the sum of its proper divisors (1).

53878757 is an equidigital number, since it uses as much as digits as its factorization.

53878757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1646400, while the sum is 50.

The square root of 53878757 is about 7340.2150513456. The cubic root of 53878757 is about 377.6932203837.

The spelling of 53878757 in words is "fifty-three million, eight hundred seventy-eight thousand, seven hundred fifty-seven".