52145207 has 2 divisors, whose sum is σ = 52145208. Its totient is φ = 52145206.

The previous prime is 52145183. The next prime is 52145213. The reversal of 52145207 is 70254125.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52145207 - 2¹⁴ = 52128823 is a prime.

It is a super-2 number, since 2×52145207² = 5438245226145698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52145227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26072603 + 26072604.

It is an arithmetic number, because the mean of its divisors is an integer number (26072604).

Almost surely, 2^52145207 is an apocalyptic number.

52145207 is a deficient number, since it is larger than the sum of its proper divisors (1).

52145207 is an equidigital number, since it uses as much as digits as its factorization.

52145207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 52145207 is about 7221.1638258663. The cubic root of 52145207 is about 373.5982201944.

The spelling of 52145207 in words is "fifty-two million, one hundred forty-five thousand, two hundred seven".