52171770 has 48 divisors (see below), whose sum is σ = 145659168. Its totient is φ = 11924640.

The previous prime is 52171747. The next prime is 52171789. The reversal of 52171770 is 7717125.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16276 + ... + 19215.

It is an arithmetic number, because the mean of its divisors is an integer number (3034566).

Almost surely, 2^52171770 is an apocalyptic number.

52171770 is an abundant number, since it is smaller than the sum of its proper divisors (93487398).

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

52171770 is a wasteful number, since it uses less digits than its factorization.

52171770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35515 (or 35508 counting only the distinct ones).

The product of its (nonzero) digits is 3430, while the sum is 30.

The square root of 52171770 is about 7223.0028381553. The cubic root of 52171770 is about 373.6616469565.

Adding to 52171770 its reverse (7717125), we get a palindrome (59888895).

The spelling of 52171770 in words is "fifty-two million, one hundred seventy-one thousand, seven hundred seventy".