825048421601 has 4 divisors (see below), whose sum is σ = 825110660400. Its totient is φ = 824986182804.

The previous prime is 825048421597. The next prime is 825048421657. The reversal of 825048421601 is 106124840528.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 825048421601 - 2² = 825048421597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (825048420601) 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, 31099511 + ... + 31126028.

It is an arithmetic number, because the mean of its divisors is an integer number (206277665100).

Almost surely, 2^825048421601 is an apocalyptic number.

It is an amenable number.

825048421601 is a deficient number, since it is larger than the sum of its proper divisors (62238799).

825048421601 is a wasteful number, since it uses less digits than its factorization.

825048421601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62238798.

The product of its (nonzero) digits is 122880, while the sum is 41.

The spelling of 825048421601 in words is "eight hundred twenty-five billion, forty-eight million, four hundred twenty-one thousand, six hundred one".