120250505 has 4 divisors (see below), whose sum is σ = 144300612. Its totient is φ = 96200400.

The previous prime is 120250477. The next prime is 120250513. The reversal of 120250505 is 505052021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505052021 = 743 ⋅679747.

It can be written as a sum of positive squares in 2 ways, for example, as 41165056 + 79085449 = 6416^2 + 8893^2 .

It is not a de Polignac number, because 120250505 - 2²⁴ = 103473289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12025046 + ... + 12025055.

It is an arithmetic number, because the mean of its divisors is an integer number (36075153).

Almost surely, 2^120250505 is an apocalyptic number.

It is an amenable number.

120250505 is a deficient number, since it is larger than the sum of its proper divisors (24050107).

120250505 is an equidigital number, since it uses as much as digits as its factorization.

120250505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24050106.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 120250505 is about 10965.8791257245. The cubic root of 120250505 is about 493.5853976773.

The spelling of 120250505 in words is "one hundred twenty million, two hundred fifty thousand, five hundred five".