77525049 has 16 divisors (see below), whose sum is σ = 125083008. Its totient is φ = 41693952.

The previous prime is 77525047. The next prime is 77525053. The reversal of 77525049 is 94052577.

It is not a de Polignac number, because 77525049 - 2¹ = 77525047 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 77524998 and 77525016.

It is not an unprimeable number, because it can be changed into a prime (77525047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108222 + ... + 108935.

It is an arithmetic number, because the mean of its divisors is an integer number (7817688).

Almost surely, 2^77525049 is an apocalyptic number.

It is an amenable number.

77525049 is a deficient number, since it is larger than the sum of its proper divisors (47557959).

77525049 is a wasteful number, since it uses less digits than its factorization.

77525049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217184.

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 77525049 is about 8804.8310034889. The cubic root of 77525049 is about 426.3968782588.

The spelling of 77525049 in words is "seventy-seven million, five hundred twenty-five thousand, forty-nine".