52445531 has 2 divisors, whose sum is σ = 52445532. Its totient is φ = 52445530.

The previous prime is 52445507. The next prime is 52445551. The reversal of 52445531 is 13554425.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52445531 - 2¹⁴ = 52429147 is a prime.

It is a super-2 number, since 2×52445531² = 5501067443743922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52445494 and 52445503.

It is not a weakly prime, because it can be changed into another prime (52445551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26222765 + 26222766.

It is an arithmetic number, because the mean of its divisors is an integer number (26222766).

Almost surely, 2^52445531 is an apocalyptic number.

52445531 is a deficient number, since it is larger than the sum of its proper divisors (1).

52445531 is an equidigital number, since it uses as much as digits as its factorization.

52445531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12000, while the sum is 29.

The square root of 52445531 is about 7241.9286795715. The cubic root of 52445531 is about 374.3140788716.

Adding to 52445531 its reverse (13554425), we get a palindrome (65999956).

The spelling of 52445531 in words is "fifty-two million, four hundred forty-five thousand, five hundred thirty-one".