1801253955 has 16 divisors (see below), whose sum is σ = 3051536544. Its totient is φ = 904158720.

The previous prime is 1801253953. The next prime is 1801253969. The reversal of 1801253955 is 5593521081.

It is not a de Polignac number, because 1801253955 - 2¹ = 1801253953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1801253953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3531616 + ... + 3532125.

It is an arithmetic number, because the mean of its divisors is an integer number (190721034).

Almost surely, 2^1801253955 is an apocalyptic number.

1801253955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1801253955 is a deficient number, since it is larger than the sum of its proper divisors (1250282589).

1801253955 is a wasteful number, since it uses less digits than its factorization.

1801253955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7063766.

The product of its (nonzero) digits is 54000, while the sum is 39.

The square root of 1801253955 is about 42441.1822997428. The cubic root of 1801253955 is about 1216.7228079013.

The spelling of 1801253955 in words is "one billion, eight hundred one million, two hundred fifty-three thousand, nine hundred fifty-five".