55131450254 has 4 divisors (see below), whose sum is σ = 82697175384. Its totient is φ = 27565725126.

The previous prime is 55131450223. The next prime is 55131450259. The reversal of 55131450254 is 45205413155.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55131450259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13782862562 + ... + 13782862565.

It is an arithmetic number, because the mean of its divisors is an integer number (20674293846).

Almost surely, 2^55131450254 is an apocalyptic number.

55131450254 is a deficient number, since it is larger than the sum of its proper divisors (27565725130).

55131450254 is a wasteful number, since it uses less digits than its factorization.

55131450254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27565725129.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 55131450254 in words is "fifty-five billion, one hundred thirty-one million, four hundred fifty thousand, two hundred fifty-four".