525048460649 has 4 divisors (see below), whose sum is σ = 525681813060. Its totient is φ = 524415108240.

The previous prime is 525048460603. The next prime is 525048460661. The reversal of 525048460649 is 946064840525.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 459591796624 + 65456664025 = 677932^2 + 255845^2 .

It is a cyclic number.

It is not a de Polignac number, because 525048460649 - 2⁸ = 525048460393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 525048460649.

It is not an unprimeable number, because it can be changed into a prime (525048460549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316674962 + ... + 316676619.

It is an arithmetic number, because the mean of its divisors is an integer number (131420453265).

Almost surely, 2^525048460649 is an apocalyptic number.

It is an amenable number.

525048460649 is a deficient number, since it is larger than the sum of its proper divisors (633352411).

525048460649 is an equidigital number, since it uses as much as digits as its factorization.

525048460649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633352410.

The product of its (nonzero) digits is 8294400, while the sum is 53.

The spelling of 525048460649 in words is "five hundred twenty-five billion, forty-eight million, four hundred sixty thousand, six hundred forty-nine".