52621101 has 48 divisors (see below), whose sum is σ = 85171632. Its totient is φ = 31104000.

The previous prime is 52621099. The next prime is 52621111. The reversal of 52621101 is 10112625.

It can be written as a sum of positive squares in 8 ways, for example, as 1512900 + 51108201 = 1230^2 + 7149^2 .

It is not a de Polignac number, because 52621101 - 2¹ = 52621099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52621111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 520951 + ... + 521051.

It is an arithmetic number, because the mean of its divisors is an integer number (1774409).

Almost surely, 2^52621101 is an apocalyptic number.

It is an amenable number.

52621101 is a deficient number, since it is larger than the sum of its proper divisors (32550531).

52621101 is a wasteful number, since it uses less digits than its factorization.

52621101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 52621101 is about 7254.0403224686. The cubic root of 52621101 is about 374.7313061890.

Adding to 52621101 its reverse (10112625), we get a palindrome (62733726).

The spelling of 52621101 in words is "fifty-two million, six hundred twenty-one thousand, one hundred one".