53971845 has 16 divisors (see below), whose sum is σ = 86458560. Its totient is φ = 28750464.

The previous prime is 53971817. The next prime is 53971849. The reversal of 53971845 is 54817935.

It is not a de Polignac number, because 53971845 - 2⁶ = 53971781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53971797 and 53971806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53971849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15342 + ... + 18528.

It is an arithmetic number, because the mean of its divisors is an integer number (5403660).

Almost surely, 2^53971845 is an apocalyptic number.

It is an amenable number.

53971845 is a deficient number, since it is larger than the sum of its proper divisors (32486715).

53971845 is a wasteful number, since it uses less digits than its factorization.

53971845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4324.

The product of its digits is 151200, while the sum is 42.

The square root of 53971845 is about 7346.5532734746. The cubic root of 53971845 is about 377.9106126647.

The spelling of 53971845 in words is "fifty-three million, nine hundred seventy-one thousand, eight hundred forty-five".