52145513 has 16 divisors (see below), whose sum is σ = 61171200. Its totient is φ = 43524096.

The previous prime is 52145461. The next prime is 52145521. The reversal of 52145513 is 31554125.

It is not a de Polignac number, because 52145513 - 2⁶ = 52145449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52145573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115913 + ... + 116361.

It is an arithmetic number, because the mean of its divisors is an integer number (3823200).

Almost surely, 2^52145513 is an apocalyptic number.

It is an amenable number.

52145513 is a deficient number, since it is larger than the sum of its proper divisors (9025687).

52145513 is a wasteful number, since it uses less digits than its factorization.

52145513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856.

The product of its digits is 3000, while the sum is 26.

The square root of 52145513 is about 7221.1850135556. The cubic root of 52145513 is about 373.5989509796.

Adding to 52145513 its reverse (31554125), we get a palindrome (83699638).

It can be divided in two parts, 5214 and 5513, that multiplied together give a palindrome (28744782).

The spelling of 52145513 in words is "fifty-two million, one hundred forty-five thousand, five hundred thirteen".