102425579 has 4 divisors (see below), whose sum is σ = 102446184. Its totient is φ = 102404976.

The previous prime is 102425563. The next prime is 102425597. The reversal of 102425579 is 975524201.

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

It is a cyclic number.

It is not a de Polignac number, because 102425579 - 2⁴ = 102425563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102425539) 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, 2264 + ... + 14490.

It is an arithmetic number, because the mean of its divisors is an integer number (25611546).

Almost surely, 2^102425579 is an apocalyptic number.

102425579 is a deficient number, since it is larger than the sum of its proper divisors (20605).

102425579 is an equidigital number, since it uses as much as digits as its factorization.

102425579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20604.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 102425579 is about 10120.5523070631. The cubic root of 102425579 is about 467.8817897927.

The spelling of 102425579 in words is "one hundred two million, four hundred twenty-five thousand, five hundred seventy-nine".