53888981 has 8 divisors (see below), whose sum is σ = 54900480. Its totient is φ = 52885872.

The previous prime is 53888953. The next prime is 53888993. The reversal of 53888981 is 18988835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53888981 - 2¹⁰ = 53887957 is a prime.

It is a super-2 number, since 2×53888981² = 5808044546436722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53888951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11696 + ... + 15638.

It is an arithmetic number, because the mean of its divisors is an integer number (6862560).

Almost surely, 2^53888981 is an apocalyptic number.

It is an amenable number.

53888981 is a deficient number, since it is larger than the sum of its proper divisors (1011499).

53888981 is a wasteful number, since it uses less digits than its factorization.

53888981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195.

The product of its digits is 552960, while the sum is 50.

The square root of 53888981 is about 7340.9114556709. The cubic root of 53888981 is about 377.7171091509.

The spelling of 53888981 in words is "fifty-three million, eight hundred eighty-eight thousand, nine hundred eighty-one".