53021137 has 8 divisors (see below), whose sum is σ = 57197504. Its totient is φ = 48858768.

The previous prime is 53021119. The next prime is 53021173. The reversal of 53021137 is 73112035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53021137 - 2⁷ = 53021009 is a prime.

It is a super-2 number, since 2×53021137² = 5622481937545538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53024137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5188 + ... + 11530.

It is an arithmetic number, because the mean of its divisors is an integer number (7149688).

Almost surely, 2^53021137 is an apocalyptic number.

It is an amenable number.

53021137 is a deficient number, since it is larger than the sum of its proper divisors (4176367).

53021137 is a wasteful number, since it uses less digits than its factorization.

53021137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6999.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 53021137 is about 7281.5614396914. The cubic root of 53021137 is about 375.6785037615.

The spelling of 53021137 in words is "fifty-three million, twenty-one thousand, one hundred thirty-seven".