55990887346 has 4 divisors (see below), whose sum is σ = 83986331022. Its totient is φ = 27995443672.

The previous prime is 55990887343. The next prime is 55990887349. The reversal of 55990887346 is 64378809955.

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

It is an interprime number because it is at equal distance from previous prime (55990887343) and next prime (55990887349).

It can be written as a sum of positive squares in only one way, i.e., 54622701225 + 1368186121 = 233715^2 + 36989^2 .

It is not an unprimeable number, because it can be changed into a prime (55990887343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13997721835 + ... + 13997721838.

Almost surely, 2^55990887346 is an apocalyptic number.

55990887346 is a deficient number, since it is larger than the sum of its proper divisors (27995443676).

55990887346 is a wasteful number, since it uses less digits than its factorization.

55990887346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27995443675.

The product of its (nonzero) digits is 65318400, while the sum is 64.

The spelling of 55990887346 in words is "fifty-five billion, nine hundred ninety million, eight hundred eighty-seven thousand, three hundred forty-six".