55908129601 has 3 divisors (see below), whose sum is σ = 55908366051. Its totient is φ = 55907893152.

The previous prime is 55908129593. The next prime is 55908129637. The reversal of 55908129601 is 10692180955.

The square root of 55908129601 is 236449.

It is a perfect power (a square), and thus also a powerful number.

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.

It can be written as a sum of positive squares in only one way, i.e., 22725864001 + 33182265600 = 150751^2 + 182160^2 .

It is not a de Polignac number, because 55908129601 - 2³ = 55908129593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55908129691) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 118225 + ... + 354673.

It is an arithmetic number, because the mean of its divisors is an integer number (18636122017).

Almost surely, 2^55908129601 is an apocalyptic number.

55908129601 is the 236449-th square number.

55908129601 is the 118225-th centered octagonal number.

It is an amenable number.

55908129601 is a deficient number, since it is larger than the sum of its proper divisors (236450).

55908129601 is an frugal number, since it uses more digits than its factorization.

55908129601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472898 (or 236449 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 46.

The spelling of 55908129601 in words is "fifty-five billion, nine hundred eight million, one hundred twenty-nine thousand, six hundred one".