20541377 has 8 divisors (see below), whose sum is σ = 20856000. Its totient is φ = 20229264.

The previous prime is 20541373. The next prime is 20541379. The reversal of 20541377 is 77314502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20541377 - 2² = 20541373 is a prime.

It is a super-2 number, since 2×20541377² = 843896338112258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20541371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21218 + ... + 22164.

It is an arithmetic number, because the mean of its divisors is an integer number (2607000).

Almost surely, 2^20541377 is an apocalyptic number.

It is an amenable number.

20541377 is a deficient number, since it is larger than the sum of its proper divisors (314623).

20541377 is a wasteful number, since it uses less digits than its factorization.

20541377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 20541377 is about 4532.2595909767. The cubic root of 20541377 is about 273.8691944951.

Adding to 20541377 its reverse (77314502), we get a palindrome (97855879).

The spelling of 20541377 in words is "twenty million, five hundred forty-one thousand, three hundred seventy-seven".