53953953 has 4 divisors (see below), whose sum is σ = 71938608. Its totient is φ = 35969300.

The previous prime is 53953849. The next prime is 53953957. The reversal of 53953953 is 35935935.

53953953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53953953 is a prime.

It is a super-2 number, since 2×53953953² = 5822058088652418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53953957) 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 3 ways as a sum of consecutive naturals, for example, 8992323 + ... + 8992328.

It is an arithmetic number, because the mean of its divisors is an integer number (17984652).

Almost surely, 2^53953953 is an apocalyptic number.

It is an amenable number.

53953953 is a deficient number, since it is larger than the sum of its proper divisors (17984655).

53953953 is a wasteful number, since it uses less digits than its factorization.

53953953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17984654.

The product of its digits is 273375, while the sum is 42.

The square root of 53953953 is about 7345.3354586431. The cubic root of 53953953 is about 377.8688481485.

The spelling of 53953953 in words is "fifty-three million, nine hundred fifty-three thousand, nine hundred fifty-three".