1955953357 has 4 divisors (see below), whose sum is σ = 1956346560. Its totient is φ = 1955560156.

The previous prime is 1955953319. The next prime is 1955953361. The reversal of 1955953357 is 7533595591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1955953357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955953367) 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, 189043 + ... + 199120.

It is an arithmetic number, because the mean of its divisors is an integer number (489086640).

Almost surely, 2^1955953357 is an apocalyptic number.

It is an amenable number.

1955953357 is a deficient number, since it is larger than the sum of its proper divisors (393203).

1955953357 is an equidigital number, since it uses as much as digits as its factorization.

1955953357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393202.

The product of its digits is 3189375, while the sum is 52.

The square root of 1955953357 is about 44226.1614545056. The cubic root of 1955953357 is about 1250.6030918041.

The spelling of 1955953357 in words is "one billion, nine hundred fifty-five million, nine hundred fifty-three thousand, three hundred fifty-seven".