55550266040 has 32 divisors (see below), whose sum is σ = 125011404000. Its totient is φ = 22215963264.

The previous prime is 55550266027. The next prime is 55550266061. The reversal of 55550266040 is 4066205555.

It is a happy number.

It is a super-2 number, since 2×55550266040² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55550265985 and 55550266003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92426 + ... + 345894.

It is an arithmetic number, because the mean of its divisors is an integer number (3906606375).

Almost surely, 2^55550266040 is an apocalyptic number.

It is an amenable number.

55550266040 is an abundant number, since it is smaller than the sum of its proper divisors (69461137960).

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

55550266040 is a wasteful number, since it uses less digits than its factorization.

55550266040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258959 (or 258955 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 55550266040 in words is "fifty-five billion, five hundred fifty million, two hundred sixty-six thousand, forty".