8215267425 has 48 divisors (see below), whose sum is σ = 14394257280. Its totient is φ = 4120099840.

The previous prime is 8215267373. The next prime is 8215267429. The reversal of 8215267425 is 5247625128.

It is not a de Polignac number, because 8215267425 - 2¹³ = 8215259233 is a prime.

It is a super-2 number, since 2×8215267425² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8215267429) 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, 1985659 + ... + 1989791.

It is an arithmetic number, because the mean of its divisors is an integer number (299880360).

Almost surely, 2^8215267425 is an apocalyptic number.

8215267425 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8215267425 is a deficient number, since it is larger than the sum of its proper divisors (6178989855).

8215267425 is a wasteful number, since it uses less digits than its factorization.

8215267425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722 (or 5717 counting only the distinct ones).

The product of its digits is 268800, while the sum is 42.

The square root of 8215267425 is about 90638.1124306988. The cubic root of 8215267425 is about 2017.7804121262.

The spelling of 8215267425 in words is "eight billion, two hundred fifteen million, two hundred sixty-seven thousand, four hundred twenty-five".