7770242825 has 12 divisors (see below), whose sum is σ = 9636205788. Its totient is φ = 6215481600.

The previous prime is 7770242773. The next prime is 7770242833. The reversal of 7770242825 is 5282420777.

It can be written as a sum of positive squares in 6 ways, for example, as 8809024 + 7761433801 = 2968^2 + 88099^2 .

It is not a de Polignac number, because 7770242825 - 2⁶ = 7770242761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 370829 + ... + 391221.

It is an arithmetic number, because the mean of its divisors is an integer number (803017149).

Almost surely, 2^7770242825 is an apocalyptic number.

It is an amenable number.

7770242825 is a deficient number, since it is larger than the sum of its proper divisors (1865962963).

7770242825 is a wasteful number, since it uses less digits than its factorization.

7770242825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35644 (or 35639 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 44.

The square root of 7770242825 is about 88148.9808506031. The cubic root of 7770242825 is about 1980.6672941308.

The spelling of 7770242825 in words is "seven billion, seven hundred seventy million, two hundred forty-two thousand, eight hundred twenty-five".