53477953 has 4 divisors (see below), whose sum is σ = 53668548. Its totient is φ = 53287360.

The previous prime is 53477947. The next prime is 53478011. The reversal of 53477953 is 35977435.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15186609 + 38291344 = 3897^2 + 6188^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53477953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53477453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94876 + ... + 95437.

It is an arithmetic number, because the mean of its divisors is an integer number (13417137).

Almost surely, 2^53477953 is an apocalyptic number.

It is an amenable number.

53477953 is a deficient number, since it is larger than the sum of its proper divisors (190595).

53477953 is a wasteful number, since it uses less digits than its factorization.

53477953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190594.

The product of its digits is 396900, while the sum is 43.

The square root of 53477953 is about 7312.8621619719. The cubic root of 53477953 is about 376.7543352815.

It can be divided in two parts, 534 and 77953, that added together give a palindrome (78487).

The spelling of 53477953 in words is "fifty-three million, four hundred seventy-seven thousand, nine hundred fifty-three".