749505525 has 12 divisors (see below), whose sum is σ = 1239182592. Its totient is φ = 399736240.

The previous prime is 749505487. The next prime is 749505529. The reversal of 749505525 is 525505947.

It is not a de Polignac number, because 749505525 - 2⁷ = 749505397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749505529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4996629 + ... + 4996778.

It is an arithmetic number, because the mean of its divisors is an integer number (103265216).

Almost surely, 2^749505525 is an apocalyptic number.

749505525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

749505525 is a deficient number, since it is larger than the sum of its proper divisors (489677067).

749505525 is a wasteful number, since it uses less digits than its factorization.

749505525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9993420 (or 9993415 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 42.

The square root of 749505525 is about 27377.0985497003. The cubic root of 749505525 is about 908.3605812511.

The spelling of 749505525 in words is "seven hundred forty-nine million, five hundred five thousand, five hundred twenty-five".