2501921842 has 8 divisors (see below), whose sum is σ = 4289008896. Its totient is φ = 1072252212.

The previous prime is 2501921827. The next prime is 2501921857. The reversal of 2501921842 is 2481291052.

It is an interprime number because it is at equal distance from previous prime (2501921827) and next prime (2501921857).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2501921842² = 12519225806953345928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2501921798 and 2501921807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89354338 + ... + 89354365.

It is an arithmetic number, because the mean of its divisors is an integer number (536126112).

Almost surely, 2^2501921842 is an apocalyptic number.

2501921842 is a deficient number, since it is larger than the sum of its proper divisors (1787087054).

2501921842 is a wasteful number, since it uses less digits than its factorization.

2501921842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178708712.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 2501921842 is about 50019.2147279423. The cubic root of 2501921842 is about 1357.5564980041.

The spelling of 2501921842 in words is "two billion, five hundred one million, nine hundred twenty-one thousand, eight hundred forty-two".