550257756440 has 128 divisors (see below), whose sum is σ = 1563319388160. Its totient is φ = 169842038784.

The previous prime is 550257756437. The next prime is 550257756493. The reversal of 550257756440 is 44657752055.

It is a super-2 number, since 2×550257756440² (a number of 24 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 31 ways as a sum of consecutive naturals, for example, 2403572 + ... + 2622531.

It is an arithmetic number, because the mean of its divisors is an integer number (12213432720).

Almost surely, 2^550257756440 is an apocalyptic number.

It is an amenable number.

550257756440 is an abundant number, since it is smaller than the sum of its proper divisors (1013061631720).

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

550257756440 is a wasteful number, since it uses less digits than its factorization.

550257756440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5026161 (or 5026157 counting only the distinct ones).

The product of its (nonzero) digits is 5880000, while the sum is 50.

The spelling of 550257756440 in words is "five hundred fifty billion, two hundred fifty-seven million, seven hundred fifty-six thousand, four hundred forty".