825103407 has 4 divisors (see below), whose sum is σ = 1100137880. Its totient is φ = 550068936.

The previous prime is 825103373. The next prime is 825103421. The reversal of 825103407 is 704301528.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 825103407 - 2¹² = 825099311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825103457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137517232 + ... + 137517237.

It is an arithmetic number, because the mean of its divisors is an integer number (275034470).

Almost surely, 2^825103407 is an apocalyptic number.

825103407 is a deficient number, since it is larger than the sum of its proper divisors (275034473).

825103407 is a wasteful number, since it uses less digits than its factorization.

825103407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275034472.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 825103407 is about 28724.6132611041. The cubic root of 825103407 is about 937.9279116058.

The spelling of 825103407 in words is "eight hundred twenty-five million, one hundred three thousand, four hundred seven".