53477172 has 240 divisors, whose sum is σ = 180512640. Its totient is φ = 13436928.

The previous prime is 53477113. The next prime is 53477197. The reversal of 53477172 is 27177435.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 732528 + ... + 732600.

It is an arithmetic number, because the mean of its divisors is an integer number (752136).

Almost surely, 2^53477172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53477172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90256320).

53477172 is an abundant number, since it is smaller than the sum of its proper divisors (127035468).

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

53477172 is a wasteful number, since it uses less digits than its factorization.

53477172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 121 counting only the distinct ones).

The product of its digits is 41160, while the sum is 36.

The square root of 53477172 is about 7312.8087627122. The cubic root of 53477172 is about 376.7525012137.

The spelling of 53477172 in words is "fifty-three million, four hundred seventy-seven thousand, one hundred seventy-two".