52525251 has 12 divisors (see below), whose sum is σ = 75972312. Its totient is φ = 34969536.

The previous prime is 52525201. The next prime is 52525259. The reversal of 52525251 is 15252525.

It is not a de Polignac number, because 52525251 - 2⁹ = 52524739 is a prime.

It is a super-2 number, since 2×52525251² = 5517803985226002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52525259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3915 + ... + 10971.

It is an arithmetic number, because the mean of its divisors is an integer number (6331026).

Almost surely, 2^52525251 is an apocalyptic number.

52525251 is a deficient number, since it is larger than the sum of its proper divisors (23447061).

52525251 is a wasteful number, since it uses less digits than its factorization.

52525251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7890 (or 7887 counting only the distinct ones).

The product of its digits is 5000, while the sum is 27.

The square root of 52525251 is about 7247.4306481677. The cubic root of 52525251 is about 374.5036419664.

Adding to 52525251 its reverse (15252525), we get a palindrome (67777776).

The spelling of 52525251 in words is "fifty-two million, five hundred twenty-five thousand, two hundred fifty-one".