20155262 has 4 divisors (see below), whose sum is σ = 30232896. Its totient is φ = 10077630.

The previous prime is 20155249. The next prime is 20155271. The reversal of 20155262 is 26255102.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5038814 + ... + 5038817.

It is an arithmetic number, because the mean of its divisors is an integer number (7558224).

Almost surely, 2^20155262 is an apocalyptic number.

20155262 is a deficient number, since it is larger than the sum of its proper divisors (10077634).

20155262 is a wasteful number, since it uses less digits than its factorization.

20155262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10077633.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 20155262 is about 4489.4612148898. The cubic root of 20155262 is about 272.1423616790.

The spelling of 20155262 in words is "twenty million, one hundred fifty-five thousand, two hundred sixty-two".