55326646523 has 32 divisors (see below), whose sum is σ = 63115863552. Its totient is φ = 48234700800.

The previous prime is 55326646519. The next prime is 55326646547. The reversal of 55326646523 is 32564662355.

It is a cyclic number.

It is not a de Polignac number, because 55326646523 - 2² = 55326646519 is a prime.

It is a super-2 number, since 2×55326646523² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55326646423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1121015 + ... + 1169327.

It is an arithmetic number, because the mean of its divisors is an integer number (1972370736).

Almost surely, 2^55326646523 is an apocalyptic number.

55326646523 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

55326646523 is a deficient number, since it is larger than the sum of its proper divisors (7789217029).

55326646523 is a wasteful number, since it uses less digits than its factorization.

55326646523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48455.

The product of its digits is 3888000, while the sum is 47.

The spelling of 55326646523 in words is "fifty-five billion, three hundred twenty-six million, six hundred forty-six thousand, five hundred twenty-three".