55276493478 has 32 divisors (see below), whose sum is σ = 117154568160. Its totient is φ = 17356227840.

The previous prime is 55276493477. The next prime is 55276493479. The reversal of 55276493478 is 87439467255.

It is an interprime number because it is at equal distance from previous prime (55276493477) and next prime (55276493479).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55276493477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3867025 + ... + 3881292.

It is an arithmetic number, because the mean of its divisors is an integer number (3661080255).

Almost surely, 2^55276493478 is an apocalyptic number.

55276493478 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

55276493478 is an abundant number, since it is smaller than the sum of its proper divisors (61878074682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55276493478 is a wasteful number, since it uses less digits than its factorization.

55276493478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7748392.

The product of its digits is 50803200, while the sum is 60.

The spelling of 55276493478 in words is "fifty-five billion, two hundred seventy-six million, four hundred ninety-three thousand, four hundred seventy-eight".