20553514 has 4 divisors (see below), whose sum is σ = 30830274. Its totient is φ = 10276756.

The previous prime is 20553503. The next prime is 20553517. The reversal of 20553514 is 41535502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41535502 = 2 ⋅20767751.

It can be written as a sum of positive squares in only one way, i.e., 15468489 + 5085025 = 3933^2 + 2255^2 .

It is not an unprimeable number, because it can be changed into a prime (20553517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5138377 + ... + 5138380.

Almost surely, 2^20553514 is an apocalyptic number.

20553514 is a deficient number, since it is larger than the sum of its proper divisors (10276760).

20553514 is a wasteful number, since it uses less digits than its factorization.

20553514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10276759.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 20553514 is about 4533.5983500968. The cubic root of 20553514 is about 273.9231229793.

The spelling of 20553514 in words is "twenty million, five hundred fifty-three thousand, five hundred fourteen".