498025528921 has 4 divisors (see below), whose sum is σ = 499208487844. Its totient is φ = 496842570000.

The previous prime is 498025528867. The next prime is 498025528927. The reversal of 498025528921 is 129825520894.

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 1474176025 + 496551352896 = 38395^2 + 704664^2 .

It is a cyclic number.

It is not a de Polignac number, because 498025528921 - 2¹⁵ = 498025496153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (498025528927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591478830 + ... + 591479671.

It is an arithmetic number, because the mean of its divisors is an integer number (124802121961).

Almost surely, 2^498025528921 is an apocalyptic number.

It is an amenable number.

498025528921 is a deficient number, since it is larger than the sum of its proper divisors (1182958923).

498025528921 is a wasteful number, since it uses less digits than its factorization.

498025528921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182958922.

The product of its (nonzero) digits is 4147200, while the sum is 55.

The spelling of 498025528921 in words is "four hundred ninety-eight billion, twenty-five million, five hundred twenty-eight thousand, nine hundred twenty-one".