1955523136 has 28 divisors (see below), whose sum is σ = 4434848128. Its totient is φ = 838081152.

The previous prime is 1955523127. The next prime is 1955523137. The reversal of 1955523136 is 6313255591.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (1955523137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2182056 + ... + 2182951.

Almost surely, 2^1955523136 is an apocalyptic number.

1955523136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1955523136 is an abundant number, since it is smaller than the sum of its proper divisors (2479324992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1955523136 is an equidigital number, since it uses as much as digits as its factorization.

1955523136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4365026 (or 4365016 counting only the distinct ones).

The product of its digits is 121500, while the sum is 40.

The square root of 1955523136 is about 44221.2973124941. The cubic root of 1955523136 is about 1250.5113930998.

The spelling of 1955523136 in words is "one billion, nine hundred fifty-five million, five hundred twenty-three thousand, one hundred thirty-six".