20256514 has 16 divisors (see below), whose sum is σ = 32230080. Its totient is φ = 9527760.

The previous prime is 20256497. The next prime is 20256521. The reversal of 20256514 is 41565202.

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, 804 + ... + 6415.

It is an arithmetic number, because the mean of its divisors is an integer number (2014380).

Almost surely, 2^20256514 is an apocalyptic number.

20256514 is a deficient number, since it is larger than the sum of its proper divisors (11973566).

20256514 is a wasteful number, since it uses less digits than its factorization.

20256514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7305.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 20256514 is about 4500.7237195811. The cubic root of 20256514 is about 272.5973122694.

The spelling of 20256514 in words is "twenty million, two hundred fifty-six thousand, five hundred fourteen".