55877442451431 has 4 divisors (see below), whose sum is σ = 74503256601912. Its totient is φ = 37251628300952.

The previous prime is 55877442451403. The next prime is 55877442451541. The reversal of 55877442451431 is 13415424477855.

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 55877442451431 - 2⁶ = 55877442451367 is a prime.

It is a super-2 number, since 2×55877442451431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55877442451031) 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, 9312907075236 + ... + 9312907075241.

It is an arithmetic number, because the mean of its divisors is an integer number (18625814150478).

Almost surely, 2^{55877442451431} is an apocalyptic number.

55877442451431 is a deficient number, since it is larger than the sum of its proper divisors (18625814150481).

55877442451431 is a wasteful number, since it uses less digits than its factorization.

55877442451431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18625814150480.

The product of its digits is 75264000, while the sum is 60.

The spelling of 55877442451431 in words is "fifty-five trillion, eight hundred seventy-seven billion, four hundred forty-two million, four hundred fifty-one thousand, four hundred thirty-one".