20454755 has 8 divisors (see below), whose sum is σ = 24570000. Its totient is φ = 16347616.

The previous prime is 20454739. The next prime is 20454803. The reversal of 20454755 is 55745402.

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 20454755 - 2⁴ = 20454739 is a prime.

It is a super-2 number, since 2×20454755² = 836794004220050, which contains 22 as substring.

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, 8696 + ... + 10794.

It is an arithmetic number, because the mean of its divisors is an integer number (3071250).

Almost surely, 2^20454755 is an apocalyptic number.

20454755 is a deficient number, since it is larger than the sum of its proper divisors (4115245).

20454755 is a wasteful number, since it uses less digits than its factorization.

20454755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053.

The product of its (nonzero) digits is 28000, while the sum is 32.

The square root of 20454755 is about 4522.6933347288. The cubic root of 20454755 is about 273.4836876862.

The spelling of 20454755 in words is "twenty million, four hundred fifty-four thousand, seven hundred fifty-five".