52202251 has 4 divisors (see below), whose sum is σ = 52290000. Its totient is φ = 52114504.

The previous prime is 52202239. The next prime is 52202273. The reversal of 52202251 is 15220225.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52202251 - 2⁷ = 52202123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52202281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42976 + ... + 44173.

It is an arithmetic number, because the mean of its divisors is an integer number (13072500).

Almost surely, 2^52202251 is an apocalyptic number.

52202251 is a deficient number, since it is larger than the sum of its proper divisors (87749).

52202251 is an equidigital number, since it uses as much as digits as its factorization.

52202251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87748.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 52202251 is about 7225.1125250753. The cubic root of 52202251 is about 373.7344025437.

Adding to 52202251 its reverse (15220225), we get a palindrome (67422476).

It can be divided in two parts, 5 and 2202251, that added together give a square (2202256 = 1484²).

The spelling of 52202251 in words is "fifty-two million, two hundred two thousand, two hundred fifty-one".