55774125667280 has 90 divisors (see below), whose sum is σ = 129964197270726. Its totient is φ = 22259979512064.

The previous prime is 55774125667261. The next prime is 55774125667331. The reversal of 55774125667280 is 8276652147755.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 10147180895296 + 45626944771984 = 3185464^2 + 6754772^2 .

It is a super-2 number, since 2×55774125667280² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 50565843209 + ... + 50565844311.

Almost surely, 2^{55774125667280} is an apocalyptic number.

It is an amenable number.

55774125667280 is an abundant number, since it is smaller than the sum of its proper divisors (74190071603446).

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

55774125667280 is an frugal number, since it uses more digits than its factorization.

55774125667280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3733 (or 1867 counting only the distinct ones).

The product of its (nonzero) digits is 197568000, while the sum is 65.

The spelling of 55774125667280 in words is "fifty-five trillion, seven hundred seventy-four billion, one hundred twenty-five million, six hundred sixty-seven thousand, two hundred eighty".