407225615 has 4 divisors (see below), whose sum is σ = 488670744. Its totient is φ = 325780488.

The previous prime is 407225597. The next prime is 407225617. The reversal of 407225615 is 516522704.

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 407225615 - 2¹⁸ = 406963471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407225617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40722557 + ... + 40722566.

It is an arithmetic number, because the mean of its divisors is an integer number (122167686).

Almost surely, 2^407225615 is an apocalyptic number.

407225615 is a deficient number, since it is larger than the sum of its proper divisors (81445129).

407225615 is an equidigital number, since it uses as much as digits as its factorization.

407225615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81445128.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 407225615 is about 20179.8318873077. The cubic root of 407225615 is about 741.2164160805.

The spelling of 407225615 in words is "four hundred seven million, two hundred twenty-five thousand, six hundred fifteen".