52101270 has 48 divisors (see below), whose sum is σ = 145886832. Its totient is φ = 12824640.

The previous prime is 52101253. The next prime is 52101271. The reversal of 52101270 is 7210125.

It is a super-2 number, since 2×52101270² = 5429084671225800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52101271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21096 + ... + 23435.

It is an arithmetic number, because the mean of its divisors is an integer number (3039309).

Almost surely, 2^52101270 is an apocalyptic number.

52101270 is an abundant number, since it is smaller than the sum of its proper divisors (93785562).

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

52101270 is a wasteful number, since it uses less digits than its factorization.

52101270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44557 (or 44554 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 52101270 is about 7218.1209466176. The cubic root of 52101270 is about 373.4932607398.

Adding to 52101270 its reverse (7210125), we get a palindrome (59311395).

The spelling of 52101270 in words is "fifty-two million, one hundred one thousand, two hundred seventy".