20153006 has 4 divisors (see below), whose sum is σ = 30229512. Its totient is φ = 10076502.

The previous prime is 20152969. The next prime is 20153009. The reversal of 20153006 is 60035102.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×20153006² = 812287301672072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20153009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5038250 + ... + 5038253.

It is an arithmetic number, because the mean of its divisors is an integer number (7557378).

Almost surely, 2^20153006 is an apocalyptic number.

20153006 is a deficient number, since it is larger than the sum of its proper divisors (10076506).

20153006 is a wasteful number, since it uses less digits than its factorization.

20153006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10076505.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 20153006 is about 4489.2099527645. The cubic root of 20153006 is about 272.1322075717.

Adding to 20153006 its reverse (60035102), we get a palindrome (80188108).

The spelling of 20153006 in words is "twenty million, one hundred fifty-three thousand, six".