55291456023551 has 4 divisors (see below), whose sum is σ = 60317952025704. Its totient is φ = 50264960021400.

The previous prime is 55291456023541. The next prime is 55291456023593. The reversal of 55291456023551 is 15532065419255.

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

It is a cyclic number.

It is not a de Polignac number, because 55291456023551 - 2¹⁴ = 55291456007167 is a prime.

It is a super-2 number, since 2×55291456023551² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55291456023493 and 55291456023502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55291456023541) 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, 2513248001060 + ... + 2513248001081.

It is an arithmetic number, because the mean of its divisors is an integer number (15079488006426).

Almost surely, 2^{55291456023551} is an apocalyptic number.

55291456023551 is a deficient number, since it is larger than the sum of its proper divisors (5026496002153).

55291456023551 is a wasteful number, since it uses less digits than its factorization.

55291456023551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5026496002152.

The product of its (nonzero) digits is 8100000, while the sum is 53.

The spelling of 55291456023551 in words is "fifty-five trillion, two hundred ninety-one billion, four hundred fifty-six million, twenty-three thousand, five hundred fifty-one".