55221858470 has 16 divisors (see below), whose sum is σ = 100424082528. Its totient is φ = 21861024000.

The previous prime is 55221858451. The next prime is 55221858479. The reversal of 55221858470 is 7485812255.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55221858479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28463906 + ... + 28465845.

It is an arithmetic number, because the mean of its divisors is an integer number (6276505158).

Almost surely, 2^55221858470 is an apocalyptic number.

55221858470 is a deficient number, since it is larger than the sum of its proper divisors (45202224058).

55221858470 is a wasteful number, since it uses less digits than its factorization.

55221858470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56929855.

The product of its (nonzero) digits is 896000, while the sum is 47.

The spelling of 55221858470 in words is "fifty-five billion, two hundred twenty-one million, eight hundred fifty-eight thousand, four hundred seventy".