53720337 has 16 divisors (see below), whose sum is σ = 80252352. Its totient is φ = 31677120.

The previous prime is 53720309. The next prime is 53720347. The reversal of 53720337 is 73302735.

53720337 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 53720337 - 2⁶ = 53720273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53720347) 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 15 ways as a sum of consecutive naturals, for example, 20778 + ... + 23219.

It is an arithmetic number, because the mean of its divisors is an integer number (5015772).

Almost surely, 2^53720337 is an apocalyptic number.

It is an amenable number.

53720337 is a deficient number, since it is larger than the sum of its proper divisors (26532015).

53720337 is a wasteful number, since it uses less digits than its factorization.

53720337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44048.

The product of its (nonzero) digits is 13230, while the sum is 30.

The square root of 53720337 is about 7329.4158703133. The cubic root of 53720337 is about 377.3226791731.

The spelling of 53720337 in words is "fifty-three million, seven hundred twenty thousand, three hundred thirty-seven".