825372547 has 2 divisors, whose sum is σ = 825372548. Its totient is φ = 825372546.

The previous prime is 825372539. The next prime is 825372553. The reversal of 825372547 is 745273528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 825372547 - 2³ = 825372539 is a prime.

It is not a weakly prime, because it can be changed into another prime (825372557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412686273 + 412686274.

It is an arithmetic number, because the mean of its divisors is an integer number (412686274).

Almost surely, 2^825372547 is an apocalyptic number.

825372547 is a deficient number, since it is larger than the sum of its proper divisors (1).

825372547 is an equidigital number, since it uses as much as digits as its factorization.

825372547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 470400, while the sum is 43.

The square root of 825372547 is about 28729.2977115696. The cubic root of 825372547 is about 938.0298812393.

The spelling of 825372547 in words is "eight hundred twenty-five million, three hundred seventy-two thousand, five hundred forty-seven".