53981935 has 16 divisors (see below), whose sum is σ = 74244096. Its totient is φ = 36910368.

The previous prime is 53981911. The next prime is 53981957. The reversal of 53981935 is 53918935.

It is a cyclic number.

It is not a de Polignac number, because 53981935 - 2⁵ = 53981903 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53981891 and 53981900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11392 + ... + 15418.

It is an arithmetic number, because the mean of its divisors is an integer number (4640256).

Almost surely, 2^53981935 is an apocalyptic number.

53981935 is a deficient number, since it is larger than the sum of its proper divisors (20262161).

53981935 is a wasteful number, since it uses less digits than its factorization.

53981935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4422.

The product of its digits is 145800, while the sum is 43.

The square root of 53981935 is about 7347.2399579706. The cubic root of 53981935 is about 377.9341612420.

The spelling of 53981935 in words is "fifty-three million, nine hundred eighty-one thousand, nine hundred thirty-five".