77283025 has 6 divisors (see below), whose sum is σ = 95830982. Its totient is φ = 61826400.

The previous prime is 77283001. The next prime is 77283029. The reversal of 77283025 is 52038277.

It can be written as a sum of positive squares in 3 ways, for example, as 2062096 + 75220929 = 1436^2 + 8673^2 .

It is not a de Polignac number, because 77283025 - 2¹¹ = 77280977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77283029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1545636 + ... + 1545685.

Almost surely, 2^77283025 is an apocalyptic number.

It is an amenable number.

77283025 is a deficient number, since it is larger than the sum of its proper divisors (18547957).

77283025 is a wasteful number, since it uses less digits than its factorization.

77283025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3091331 (or 3091326 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 77283025 is about 8791.0764414831. The cubic root of 77283025 is about 425.9526955636.

The spelling of 77283025 in words is "seventy-seven million, two hundred eighty-three thousand, twenty-five".