955005551 has 4 divisors (see below), whose sum is σ = 955067400. Its totient is φ = 954943704.

The previous prime is 955005547. The next prime is 955005559. The reversal of 955005551 is 155500559.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 155500559 = 2663 ⋅58393.

It is a cyclic number.

It is not a de Polignac number, because 955005551 - 2² = 955005547 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 (955005559) 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, 13760 + ... + 45818.

It is an arithmetic number, because the mean of its divisors is an integer number (238766850).

Almost surely, 2^955005551 is an apocalyptic number.

955005551 is a deficient number, since it is larger than the sum of its proper divisors (61849).

955005551 is a wasteful number, since it uses less digits than its factorization.

955005551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61848.

The product of its (nonzero) digits is 28125, while the sum is 35.

The square root of 955005551 is about 30903.1640936652. The cubic root of 955005551 is about 984.7711084871.

The spelling of 955005551 in words is "nine hundred fifty-five million, five thousand, five hundred fifty-one".