53371557 has 12 divisors (see below), whose sum is σ = 78885664. Its totient is φ = 34753320.

The previous prime is 53371537. The next prime is 53371561. The reversal of 53371557 is 75517335.

It is a happy number.

53371557 is a `hidden beast` number, since 5 + 33 + 71 + 557 = 666.

53371557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53371557 - 2¹⁰ = 53370533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53371537) 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 11 ways as a sum of consecutive naturals, for example, 68569 + ... + 69342.

Almost surely, 2^53371557 is an apocalyptic number.

It is an amenable number.

53371557 is a deficient number, since it is larger than the sum of its proper divisors (25514107).

53371557 is a wasteful number, since it uses less digits than its factorization.

53371557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137960 (or 137957 counting only the distinct ones).

The product of its digits is 55125, while the sum is 36.

The square root of 53371557 is about 7305.5839602321. The cubic root of 53371557 is about 376.5043146969.

The spelling of 53371557 in words is "fifty-three million, three hundred seventy-one thousand, five hundred fifty-seven".