102425555 has 8 divisors (see below), whose sum is σ = 128254752. Its totient is φ = 78377728.

The previous prime is 102425539. The next prime is 102425563. The reversal of 102425555 is 555524201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102425555 - 2⁴ = 102425539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445214 + ... + 445443.

It is an arithmetic number, because the mean of its divisors is an integer number (16031844).

Almost surely, 2^102425555 is an apocalyptic number.

102425555 is a deficient number, since it is larger than the sum of its proper divisors (25829197).

102425555 is an equidigital number, since it uses as much as digits as its factorization.

102425555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890685.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 102425555 is about 10120.5511213570. The cubic root of 102425555 is about 467.8817532485.

Adding to 102425555 its reverse (555524201), we get a palindrome (657949756).

The spelling of 102425555 in words is "one hundred two million, four hundred twenty-five thousand, five hundred fifty-five".