55851251438 has 8 divisors (see below), whose sum is σ = 86665735080. Its totient is φ = 26962673080.

The previous prime is 55851251437. The next prime is 55851251447. The reversal of 55851251438 is 83415215855.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 55851251392 and 55851251401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55851251437) 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, 481476248 + ... + 481476363.

It is an arithmetic number, because the mean of its divisors is an integer number (10833216885).

Almost surely, 2^55851251438 is an apocalyptic number.

55851251438 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

55851251438 is a deficient number, since it is larger than the sum of its proper divisors (30814483642).

55851251438 is a wasteful number, since it uses less digits than its factorization.

55851251438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962952642.

The product of its digits is 960000, while the sum is 47.

The spelling of 55851251438 in words is "fifty-five billion, eight hundred fifty-one million, two hundred fifty-one thousand, four hundred thirty-eight".