53157428 has 6 divisors (see below), whose sum is σ = 93025506. Its totient is φ = 26578712.

The previous prime is 53157427. The next prime is 53157431. The reversal of 53157428 is 82475135.

It is a happy number.

53157428 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., 52678564 + 478864 = 7258^2 + 692^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53157427) 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 as a sum of consecutive naturals, namely, 6644675 + ... + 6644682.

It is an arithmetic number, because the mean of its divisors is an integer number (15504251).

Almost surely, 2^53157428 is an apocalyptic number.

It is an amenable number.

53157428 is a deficient number, since it is larger than the sum of its proper divisors (39868078).

53157428 is a wasteful number, since it uses less digits than its factorization.

53157428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13289361 (or 13289359 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 53157428 is about 7290.9140716374. The cubic root of 53157428 is about 376.0001226045. Note that the first 3 decimals are identical.

The spelling of 53157428 in words is "fifty-three million, one hundred fifty-seven thousand, four hundred twenty-eight".