53616977 has 4 divisors (see below), whose sum is σ = 53691456. Its totient is φ = 53542500.

The previous prime is 53616943. The next prime is 53617007. The reversal of 53616977 is 77961635.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77961635 = 5 ⋅15592327.

It is a cyclic number.

It is not a de Polignac number, because 53616977 - 2¹⁰ = 53615953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53619977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36149 + ... + 37602.

It is an arithmetic number, because the mean of its divisors is an integer number (13422864).

Almost surely, 2^53616977 is an apocalyptic number.

It is an amenable number.

53616977 is a deficient number, since it is larger than the sum of its proper divisors (74479).

53616977 is an equidigital number, since it uses as much as digits as its factorization.

53616977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74478.

The product of its digits is 238140, while the sum is 44.

The square root of 53616977 is about 7322.3614360396. The cubic root of 53616977 is about 377.0805293430.

The spelling of 53616977 in words is "fifty-three million, six hundred sixteen thousand, nine hundred seventy-seven".