2521930842 has 16 divisors (see below), whose sum is σ = 5604290880. Its totient is φ = 840643596.

The previous prime is 2521930823. The next prime is 2521930867. The reversal of 2521930842 is 2480391252.

It is a happy number.

2521930842 is a `hidden beast` number, since 2 + 521 + 93 + 0 + 8 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2521930797 and 2521930806.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23351158 + ... + 23351265.

It is an arithmetic number, because the mean of its divisors is an integer number (350268180).

Almost surely, 2^2521930842 is an apocalyptic number.

2521930842 is an abundant number, since it is smaller than the sum of its proper divisors (3082360038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2521930842 is a wasteful number, since it uses less digits than its factorization.

2521930842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46702434 (or 46702428 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 2521930842 is about 50218.8295562531. The cubic root of 2521930842 is about 1361.1658907271.

The spelling of 2521930842 in words is "two billion, five hundred twenty-one million, nine hundred thirty thousand, eight hundred forty-two".