555561950 has 24 divisors (see below), whose sum is σ = 1034000040. Its totient is φ = 222084000.

The previous prime is 555561917. The next prime is 555561959. The reversal of 555561950 is 59165555.

It is a junction number, because it is equal to n+sod(n) for n = 555561898 and 555561907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555561959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117125 + ... + 121775.

It is an arithmetic number, because the mean of its divisors is an integer number (43083335).

Almost surely, 2^555561950 is an apocalyptic number.

555561950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

555561950 is a deficient number, since it is larger than the sum of its proper divisors (478438090).

555561950 is a wasteful number, since it uses less digits than its factorization.

555561950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7052 (or 7047 counting only the distinct ones).

The product of its (nonzero) digits is 168750, while the sum is 41.

The square root of 555561950 is about 23570.3616858121. The cubic root of 555561950 is about 822.0738454426.

The spelling of 555561950 in words is "five hundred fifty-five million, five hundred sixty-one thousand, nine hundred fifty".