77626225 has 12 divisors (see below), whose sum is σ = 96370816. Its totient is φ = 62027280.

The previous prime is 77626189. The next prime is 77626273. The reversal of 77626225 is 52262677.

It is not a de Polignac number, because 77626225 - 2²¹ = 75529073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 31384 + ... + 33766.

Almost surely, 2^77626225 is an apocalyptic number.

It is an amenable number.

77626225 is a deficient number, since it is larger than the sum of its proper divisors (18744591).

77626225 is a wasteful number, since it uses less digits than its factorization.

77626225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3696 (or 3691 counting only the distinct ones).

The product of its digits is 70560, while the sum is 37.

The square root of 77626225 is about 8810.5746123621. The cubic root of 77626225 is about 426.5822909189.

The spelling of 77626225 in words is "seventy-seven million, six hundred twenty-six thousand, two hundred twenty-five".