52516031 has 4 divisors (see below), whose sum is σ = 52534272. Its totient is φ = 52497792.

The previous prime is 52516003. The next prime is 52516049. The reversal of 52516031 is 13061525.

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 52516031 - 2¹⁰ = 52515007 is a prime.

It is a super-2 number, since 2×52516031² = 5515867023985922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52515988 and 52516006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52516081) 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, 3746 + ... + 10911.

It is an arithmetic number, because the mean of its divisors is an integer number (13133568).

Almost surely, 2^52516031 is an apocalyptic number.

52516031 is a deficient number, since it is larger than the sum of its proper divisors (18241).

52516031 is a wasteful number, since it uses less digits than its factorization.

52516031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18240.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 52516031 is about 7246.7945327572. The cubic root of 52516031 is about 374.4817278992.

Adding to 52516031 its reverse (13061525), we get a palindrome (65577556).

The spelling of 52516031 in words is "fifty-two million, five hundred sixteen thousand, thirty-one".