52145407 has 2 divisors, whose sum is σ = 52145408. Its totient is φ = 52145406.

The previous prime is 52145389. The next prime is 52145413. The reversal of 52145407 is 70454125.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52145407 - 2⁷ = 52145279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52145417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26072703 + 26072704.

It is an arithmetic number, because the mean of its divisors is an integer number (26072704).

Almost surely, 2^52145407 is an apocalyptic number.

52145407 is a deficient number, since it is larger than the sum of its proper divisors (1).

52145407 is an equidigital number, since it uses as much as digits as its factorization.

52145407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 52145407 is about 7221.1776740363. The cubic root of 52145407 is about 373.5986978321.

It can be divided in two parts, 5 and 2145407, that added together give a palindrome (2145412).

The spelling of 52145407 in words is "fifty-two million, one hundred forty-five thousand, four hundred seven".