53171580 has 192 divisors, whose sum is σ = 196826112. Its totient is φ = 10383360.

The previous prime is 53171579. The next prime is 53171581. The reversal of 53171580 is 8517135.

It is an interprime number because it is at equal distance from previous prime (53171579) and next prime (53171581).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53171581) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78202 + ... + 78878.

It is an arithmetic number, because the mean of its divisors is an integer number (1025136).

Almost surely, 2^53171580 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 53171580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98413056).

53171580 is an abundant number, since it is smaller than the sum of its proper divisors (143654532).

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

53171580 is a wasteful number, since it uses less digits than its factorization.

53171580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724 (or 722 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 53171580 is about 7291.8845300786. The cubic root of 53171580 is about 376.0334869074.

The spelling of 53171580 in words is "fifty-three million, one hundred seventy-one thousand, five hundred eighty".