725527771 has 8 divisors (see below), whose sum is σ = 761119200. Its totient is φ = 690641280.

The previous prime is 725527763. The next prime is 725527807. The reversal of 725527771 is 177725527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 725527771 - 2³ = 725527763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725507771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174126 + ... + 178243.

It is an arithmetic number, because the mean of its divisors is an integer number (95139900).

Almost surely, 2^725527771 is an apocalyptic number.

725527771 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

725527771 is a deficient number, since it is larger than the sum of its proper divisors (35591429).

725527771 is a wasteful number, since it uses less digits than its factorization.

725527771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352469.

The product of its digits is 240100, while the sum is 43.

The square root of 725527771 is about 26935.6227141679. The cubic root of 725527771 is about 898.5688245353.

The spelling of 725527771 in words is "seven hundred twenty-five million, five hundred twenty-seven thousand, seven hundred seventy-one".