52681531 has 8 divisors (see below), whose sum is σ = 60256224. Its totient is φ = 45119040.

The previous prime is 52681481. The next prime is 52681537. The reversal of 52681531 is 13518625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52681531 - 2⁷ = 52681403 is a prime.

It is a super-2 number, since 2×52681531² = 5550687417007922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52681493 and 52681502.

It is not an unprimeable number, because it can be changed into a prime (52681537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9861 + ... + 14233.

It is an arithmetic number, because the mean of its divisors is an integer number (7532028).

Almost surely, 2^52681531 is an apocalyptic number.

52681531 is a deficient number, since it is larger than the sum of its proper divisors (7574693).

52681531 is a wasteful number, since it uses less digits than its factorization.

52681531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6101.

The product of its digits is 7200, while the sum is 31.

The square root of 52681531 is about 7258.2043922722. The cubic root of 52681531 is about 374.8746982848.

The spelling of 52681531 in words is "fifty-two million, six hundred eighty-one thousand, five hundred thirty-one".