525469749 has 8 divisors (see below), whose sum is σ = 800715840. Its totient is φ = 300268416.

The previous prime is 525469741. The next prime is 525469759. The reversal of 525469749 is 947964525.

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

It is not a de Polignac number, because 525469749 - 2³ = 525469741 is a prime.

It is a super-2 number, since 2×525469749² = 552236914228246002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525469741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12511164 + ... + 12511205.

It is an arithmetic number, because the mean of its divisors is an integer number (100089480).

Almost surely, 2^525469749 is an apocalyptic number.

It is an amenable number.

525469749 is a deficient number, since it is larger than the sum of its proper divisors (275246091).

525469749 is a wasteful number, since it uses less digits than its factorization.

525469749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25022379.

The product of its digits is 2721600, while the sum is 51.

The square root of 525469749 is about 22923.1269463832. The cubic root of 525469749 is about 806.9548565225.

The spelling of 525469749 in words is "five hundred twenty-five million, four hundred sixty-nine thousand, seven hundred forty-nine".