7425216505 has 16 divisors (see below), whose sum is σ = 10228829184. Its totient is φ = 5068739520.

The previous prime is 7425216457. The next prime is 7425216541. The reversal of 7425216505 is 5056125247.

It is not a de Polignac number, because 7425216505 - 2⁷ = 7425216377 is a prime.

It is a super-2 number, since 2×7425216505² (a number of 21 digits) contains 22 as substring.

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, 467866 + ... + 483475.

It is an arithmetic number, because the mean of its divisors is an integer number (639301824).

Almost surely, 2^7425216505 is an apocalyptic number.

It is an amenable number.

7425216505 is a deficient number, since it is larger than the sum of its proper divisors (2803612679).

7425216505 is a wasteful number, since it uses less digits than its factorization.

7425216505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951576.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 7425216505 is about 86169.6959783426. The cubic root of 7425216505 is about 1950.9061320154.

The spelling of 7425216505 in words is "seven billion, four hundred twenty-five million, two hundred sixteen thousand, five hundred five".