42821503925 has 24 divisors (see below), whose sum is σ = 54411725760. Its totient is φ = 33410620800.

The previous prime is 42821503889. The next prime is 42821503961. The reversal of 42821503925 is 52930512824.

It is an interprime number because it is at equal distance from previous prime (42821503889) and next prime (42821503961).

It is not a de Polignac number, because 42821503925 - 2¹⁰ = 42821502901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4590416 + ... + 4599734.

It is an arithmetic number, because the mean of its divisors is an integer number (2267155240).

Almost surely, 2^42821503925 is an apocalyptic number.

It is an amenable number.

42821503925 is a deficient number, since it is larger than the sum of its proper divisors (11590221835).

42821503925 is a wasteful number, since it uses less digits than its factorization.

42821503925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13853 (or 13848 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 42821503925 in words is "forty-two billion, eight hundred twenty-one million, five hundred three thousand, nine hundred twenty-five".