77340525 has 24 divisors (see below), whose sum is σ = 129200064. Its totient is φ = 40819200.

The previous prime is 77340511. The next prime is 77340533. The reversal of 77340525 is 52504377.

It is not a de Polignac number, because 77340525 - 2⁵ = 77340493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1960 + ... + 12590.

It is an arithmetic number, because the mean of its divisors is an integer number (5383336).

Almost surely, 2^77340525 is an apocalyptic number.

77340525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

77340525 is a deficient number, since it is larger than the sum of its proper divisors (51859539).

77340525 is a wasteful number, since it uses less digits than its factorization.

77340525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10741 (or 10736 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 77340525 is about 8794.3461951415. The cubic root of 77340525 is about 426.0583082699.

The spelling of 77340525 in words is "seventy-seven million, three hundred forty thousand, five hundred twenty-five".