525490709749 has 12 divisors (see below), whose sum is σ = 549379876192. Its totient is φ = 502599022200.

The previous prime is 525490709693. The next prime is 525490709827. The reversal of 525490709749 is 947907094525.

It is not a de Polignac number, because 525490709749 - 2¹¹ = 525490707701 is a prime.

It is a super-2 number, since 2×525490709749² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525490706749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7057384 + ... + 7131454.

Almost surely, 2^525490709749 is an apocalyptic number.

It is an amenable number.

525490709749 is a deficient number, since it is larger than the sum of its proper divisors (23889166443).

525490709749 is a wasteful number, since it uses less digits than its factorization.

525490709749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87528 (or 87505 counting only the distinct ones).

The product of its (nonzero) digits is 28576800, while the sum is 61.

The spelling of 525490709749 in words is "five hundred twenty-five billion, four hundred ninety million, seven hundred nine thousand, seven hundred forty-nine".