52307145 has 48 divisors (see below), whose sum is σ = 99537984. Its totient is φ = 25200000.

The previous prime is 52307141. The next prime is 52307149. The reversal of 52307145 is 54170325.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (52307141) and next prime (52307149).

It is not a de Polignac number, because 52307145 - 2² = 52307141 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52307141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 124035 + ... + 124455.

It is an arithmetic number, because the mean of its divisors is an integer number (2073708).

Almost surely, 2^52307145 is an apocalyptic number.

52307145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52307145 is a deficient number, since it is larger than the sum of its proper divisors (47230839).

52307145 is a wasteful number, since it uses less digits than its factorization.

52307145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694 (or 691 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 52307145 is about 7232.3678695155. The cubic root of 52307145 is about 373.9845594968.

The spelling of 52307145 in words is "fifty-two million, three hundred seven thousand, one hundred forty-five".