77552025 has 12 divisors (see below), whose sum is σ = 128219472. Its totient is φ = 41361040.

The previous prime is 77551997. The next prime is 77552047. The reversal of 77552025 is 52025577.

It is not a de Polignac number, because 77552025 - 2⁵ = 77551993 is a prime.

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, 516939 + ... + 517088.

It is an arithmetic number, because the mean of its divisors is an integer number (10684956).

Almost surely, 2^77552025 is an apocalyptic number.

77552025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

77552025 is a deficient number, since it is larger than the sum of its proper divisors (50667447).

77552025 is a wasteful number, since it uses less digits than its factorization.

77552025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034040 (or 1034035 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 33.

The square root of 77552025 is about 8806.3627565528. The cubic root of 77552025 is about 426.4463295800.

The spelling of 77552025 in words is "seventy-seven million, five hundred fifty-two thousand, twenty-five".