20155010 has 64 divisors (see below), whose sum is σ = 40711680. Its totient is φ = 7153920.

The previous prime is 20154961. The next prime is 20155021. The reversal of 20155010 is 1055102.

20155010 = 13² + 14² + ... + 392².

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330380 + ... + 330440.

It is an arithmetic number, because the mean of its divisors is an integer number (636120).

Almost surely, 2^20155010 is an apocalyptic number.

20155010 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

20155010 is a wasteful number, since it uses less digits than its factorization.

20155010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 20155010 is about 4489.4331490735. The cubic root of 20155010 is about 272.1412274812.

The spelling of 20155010 in words is "twenty million, one hundred fifty-five thousand, ten".