53450172 has 48 divisors (see below), whose sum is σ = 138969600. Its totient is φ = 17766000.

The previous prime is 53450171. The next prime is 53450207. The reversal of 53450172 is 27105435.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53450171) 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, 70797 + ... + 71547.

It is an arithmetic number, because the mean of its divisors is an integer number (2895200).

Almost surely, 2^53450172 is an apocalyptic number.

It is an amenable number.

53450172 is an abundant number, since it is smaller than the sum of its proper divisors (85519428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53450172 is a wasteful number, since it uses less digits than its factorization.

53450172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423 (or 1415 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 53450172 is about 7310.9624537403. The cubic root of 53450172 is about 376.6890845595.

The spelling of 53450172 in words is "fifty-three million, four hundred fifty thousand, one hundred seventy-two".