53423973 has 12 divisors (see below), whose sum is σ = 77351820. Its totient is φ = 35531136.

The previous prime is 53423971. The next prime is 53423977. The reversal of 53423973 is 37932435.

It can be written as a sum of positive squares in 2 ways, for example, as 25735329 + 27688644 = 5073^2 + 5262^2 .

It is not a de Polignac number, because 53423973 - 2¹ = 53423971 is a prime.

It is a super-2 number, since 2×53423973² = 5708241782209458, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53423971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2958 + ... + 10751.

It is an arithmetic number, because the mean of its divisors is an integer number (6445985).

Almost surely, 2^53423973 is an apocalyptic number.

It is an amenable number.

53423973 is a deficient number, since it is larger than the sum of its proper divisors (23927847).

53423973 is a wasteful number, since it uses less digits than its factorization.

53423973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14148 (or 14145 counting only the distinct ones).

The product of its digits is 68040, while the sum is 36.

The square root of 53423973 is about 7309.1704727691. The cubic root of 53423973 is about 376.6275288474.

The spelling of 53423973 in words is "fifty-three million, four hundred twenty-three thousand, nine hundred seventy-three".