20254056 has 32 divisors (see below), whose sum is σ = 51593760. Its totient is φ = 6623552.

The previous prime is 20254049. The next prime is 20254061. The reversal of 20254056 is 65045202.

It is a super-2 number, since 2×20254056² = 820453568902272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 7 ways as a sum of consecutive naturals, for example, 6690 + ... + 9233.

It is an arithmetic number, because the mean of its divisors is an integer number (1612305).

Almost surely, 2^20254056 is an apocalyptic number.

It is an amenable number.

20254056 is an abundant number, since it is smaller than the sum of its proper divisors (31339704).

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

20254056 is a wasteful number, since it uses less digits than its factorization.

20254056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15985 (or 15981 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 20254056 is about 4500.4506441022. The cubic root of 20254056 is about 272.5862858362.

Adding to 20254056 its reverse (65045202), we get a palindrome (85299258).

The spelling of 20254056 in words is "twenty million, two hundred fifty-four thousand, fifty-six".