53656479 has 8 divisors (see below), whose sum is σ = 79491120. Its totient is φ = 35770968.

The previous prime is 53656459. The next prime is 53656487. The reversal of 53656479 is 97465635.

It is not a de Polignac number, because 53656479 - 2⁸ = 53656223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53656459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 993612 + ... + 993665.

It is an arithmetic number, because the mean of its divisors is an integer number (9936390).

Almost surely, 2^53656479 is an apocalyptic number.

53656479 is a deficient number, since it is larger than the sum of its proper divisors (25834641).

53656479 is a wasteful number, since it uses less digits than its factorization.

53656479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987286 (or 1987280 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 53656479 is about 7325.0582932834. The cubic root of 53656479 is about 377.1731105822.

The spelling of 53656479 in words is "fifty-three million, six hundred fifty-six thousand, four hundred seventy-nine".