53971071 has 16 divisors (see below), whose sum is σ = 89718528. Its totient is φ = 28036800.

The previous prime is 53971069. The next prime is 53971097. The reversal of 53971071 is 17017935.

It is not a de Polignac number, because 53971071 - 2¹ = 53971069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53971051) 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, 116590 + ... + 117051.

It is an arithmetic number, because the mean of its divisors is an integer number (5607408).

Almost surely, 2^53971071 is an apocalyptic number.

53971071 is a deficient number, since it is larger than the sum of its proper divisors (35747457).

53971071 is a wasteful number, since it uses less digits than its factorization.

53971071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233662.

The product of its (nonzero) digits is 6615, while the sum is 33.

The square root of 53971071 is about 7346.5005955217. The cubic root of 53971071 is about 377.9088061412.

The spelling of 53971071 in words is "fifty-three million, nine hundred seventy-one thousand, seventy-one".