20251364 has 12 divisors (see below), whose sum is σ = 40502784. Its totient is φ = 8679144.

The previous prime is 20251333. The next prime is 20251373. The reversal of 20251364 is 46315202.

20251364 is an admirable number.

It is a super-3 number, since 3×20251364³ (a number of 23 digits) contains 333 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, 361604 + ... + 361659.

It is an arithmetic number, because the mean of its divisors is an integer number (3375232).

Almost surely, 2^20251364 is an apocalyptic number.

It is an amenable number.

20251364 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20251364 is a wasteful number, since it uses less digits than its factorization.

20251364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723274 (or 723272 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 20251364 is about 4500.1515530035. The cubic root of 20251364 is about 272.5742086701.

Adding to 20251364 its reverse (46315202), we get a palindrome (66566566).

The spelling of 20251364 in words is "twenty million, two hundred fifty-one thousand, three hundred sixty-four".