55782580550250 has 32 divisors (see below), whose sum is σ = 139233321055296. Its totient is φ = 14875354813200.

The previous prime is 55782580550231. The next prime is 55782580550329. The reversal of 55782580550250 is 5205508528755.

It is a super-2 number, since 2×55782580550250² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37188386284 + ... + 37188387783.

It is an arithmetic number, because the mean of its divisors is an integer number (4351041282978).

Almost surely, 2^{55782580550250} is an apocalyptic number.

55782580550250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55782580550250 is an abundant number, since it is smaller than the sum of its proper divisors (83450740505046).

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

55782580550250 is a wasteful number, since it uses less digits than its factorization.

55782580550250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74376774087 (or 74376774077 counting only the distinct ones).

The product of its (nonzero) digits is 28000000, while the sum is 57.

The spelling of 55782580550250 in words is "fifty-five trillion, seven hundred eighty-two billion, five hundred eighty million, five hundred fifty thousand, two hundred fifty".