77038025 has 12 divisors (see below), whose sum is σ = 95636364. Its totient is φ = 61560000.

The previous prime is 77038019. The next prime is 77038037. The reversal of 77038025 is 52083077.

It can be written as a sum of positive squares in 6 ways, for example, as 4583881 + 72454144 = 2141^2 + 8512^2 .

It is not a de Polignac number, because 77038025 - 2²² = 72843721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 77037982 and 77038000.

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, 39575 + ... + 41475.

It is an arithmetic number, because the mean of its divisors is an integer number (7969697).

Almost surely, 2^77038025 is an apocalyptic number.

It is an amenable number.

77038025 is a deficient number, since it is larger than the sum of its proper divisors (18598339).

77038025 is a wasteful number, since it uses less digits than its factorization.

77038025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3532 (or 3527 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 77038025 is about 8777.1307954251. The cubic root of 77038025 is about 425.5021055284.

The spelling of 77038025 in words is "seventy-seven million, thirty-eight thousand, twenty-five".