52181235 has 12 divisors (see below), whose sum is σ = 90447552. Its totient is φ = 27829968.

The previous prime is 52181189. The next prime is 52181267. The reversal of 52181235 is 53218125.

It is a happy number.

It is not a de Polignac number, because 52181235 - 2⁸ = 52180979 is a prime.

It is a super-2 number, since 2×52181235² = 5445762572250450, which contains 22 as substring.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 52181199 and 52181208.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 579747 + ... + 579836.

It is an arithmetic number, because the mean of its divisors is an integer number (7537296).

Almost surely, 2^52181235 is an apocalyptic number.

52181235 is a deficient number, since it is larger than the sum of its proper divisors (38266317).

52181235 is a wasteful number, since it uses less digits than its factorization.

52181235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159594 (or 1159591 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 52181235 is about 7223.6580068550. The cubic root of 52181235 is about 373.6842421495.

The spelling of 52181235 in words is "fifty-two million, one hundred eighty-one thousand, two hundred thirty-five".