675421505 has 16 divisors (see below), whose sum is σ = 884806848. Its totient is φ = 490872000.

The previous prime is 675421499. The next prime is 675421541. The reversal of 675421505 is 505124576.

675421505 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-675421505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96215 + ... + 102995.

It is an arithmetic number, because the mean of its divisors is an integer number (55300428).

Almost surely, 2^675421505 is an apocalyptic number.

It is an amenable number.

675421505 is a deficient number, since it is larger than the sum of its proper divisors (209385343).

675421505 is a wasteful number, since it uses less digits than its factorization.

675421505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8608.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 675421505 is about 25988.8727150679. The cubic root of 675421505 is about 877.3878742998.

The spelling of 675421505 in words is "six hundred seventy-five million, four hundred twenty-one thousand, five hundred five".