1955087247 has 16 divisors (see below), whose sum is σ = 2676989952. Its totient is φ = 1268595360.

The previous prime is 1955087243. The next prime is 1955087273. The reversal of 1955087247 is 7427805591.

It is not a de Polignac number, because 1955087247 - 2² = 1955087243 is a prime.

It is a super-2 number, since 2×1955087247² = 7644732286764078018, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1955087196 and 1955087205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955087243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12783 + ... + 63824.

It is an arithmetic number, because the mean of its divisors is an integer number (167311872).

Almost surely, 2^1955087247 is an apocalyptic number.

1955087247 is a deficient number, since it is larger than the sum of its proper divisors (721902705).

1955087247 is a wasteful number, since it uses less digits than its factorization.

1955087247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76838.

The product of its (nonzero) digits is 705600, while the sum is 48.

The square root of 1955087247 is about 44216.3685415254. The cubic root of 1955087247 is about 1250.4184725823.

The spelling of 1955087247 in words is "one billion, nine hundred fifty-five million, eighty-seven thousand, two hundred forty-seven".