20272851 has 6 divisors (see below), whose sum is σ = 29283020. Its totient is φ = 13515228.

The previous prime is 20272831. The next prime is 20272859. The reversal of 20272851 is 15827202.

It is not a de Polignac number, because 20272851 - 2⁶ = 20272787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20272859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1126261 + ... + 1126278.

Almost surely, 2^20272851 is an apocalyptic number.

20272851 is a deficient number, since it is larger than the sum of its proper divisors (9010169).

20272851 is a wasteful number, since it uses less digits than its factorization.

20272851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252545 (or 2252542 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 20272851 is about 4502.5382841237. The cubic root of 20272851 is about 272.6705763659.

The spelling of 20272851 in words is "twenty million, two hundred seventy-two thousand, eight hundred fifty-one".