4921906252 has 12 divisors (see below), whose sum is σ = 8987828976. Its totient is φ = 2353955120.

The previous prime is 4921906247. The next prime is 4921906271. The reversal of 4921906252 is 2526091294.

It is a super-2 number, since 2×4921906252² = 48450322306953375008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26749399 + ... + 26749582.

It is an arithmetic number, because the mean of its divisors is an integer number (748985748).

Almost surely, 2^4921906252 is an apocalyptic number.

It is an amenable number.

4921906252 is a deficient number, since it is larger than the sum of its proper divisors (4065922724).

4921906252 is a wasteful number, since it uses less digits than its factorization.

4921906252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53499008 (or 53499006 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 4921906252 is about 70156.2987336134. The cubic root of 4921906252 is about 1701.0266292599.

The spelling of 4921906252 in words is "four billion, nine hundred twenty-one million, nine hundred six thousand, two hundred fifty-two".