53377121 has 18 divisors (see below), whose sum is σ = 63998802. Its totient is φ = 44362080.

The previous prime is 53377117. The next prime is 53377151. The reversal of 53377121 is 12177335.

53377121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 32547025 + 20830096 = 5705^2 + 4564^2 .

It is not a de Polignac number, because 53377121 - 2² = 53377117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53377151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 327386 + ... + 327548.

It is an arithmetic number, because the mean of its divisors is an integer number (3555489).

Almost surely, 2^53377121 is an apocalyptic number.

It is an amenable number.

53377121 is a deficient number, since it is larger than the sum of its proper divisors (10621681).

53377121 is an equidigital number, since it uses as much as digits as its factorization.

53377121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 211 counting only the distinct ones).

The product of its digits is 4410, while the sum is 29.

The square root of 53377121 is about 7305.9647549109. The cubic root of 53377121 is about 376.5173978029.

The spelling of 53377121 in words is "fifty-three million, three hundred seventy-seven thousand, one hundred twenty-one".