20122577 has 8 divisors (see below), whose sum is σ = 22428000. Its totient is φ = 17941824.

The previous prime is 20122559. The next prime is 20122589. The reversal of 20122577 is 77522102.

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 20122577 - 2¹² = 20118481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122477) 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, 30827 + ... + 31472.

It is an arithmetic number, because the mean of its divisors is an integer number (2803500).

Almost surely, 2^20122577 is an apocalyptic number.

It is an amenable number.

20122577 is a deficient number, since it is larger than the sum of its proper divisors (2305423).

20122577 is a wasteful number, since it uses less digits than its factorization.

20122577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62335.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 20122577 is about 4485.8195460807. The cubic root of 20122577 is about 271.9951745467.

Adding to 20122577 its reverse (77522102), we get a palindrome (97644679).

The spelling of 20122577 in words is "twenty million, one hundred twenty-two thousand, five hundred seventy-seven".