55719550 has 24 divisors (see below), whose sum is σ = 104274576. Its totient is φ = 22151040.

The previous prime is 55719539. The next prime is 55719551. The reversal of 55719550 is 5591755.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55719551) 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, 5014 + ... + 11686.

It is an arithmetic number, because the mean of its divisors is an integer number (4344774).

Almost surely, 2^55719550 is an apocalyptic number.

55719550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55719550 is a deficient number, since it is larger than the sum of its proper divisors (48555026).

55719550 is a wasteful number, since it uses less digits than its factorization.

55719550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6852 (or 6847 counting only the distinct ones).

The product of its (nonzero) digits is 39375, while the sum is 37.

The square root of 55719550 is about 7464.5529002078. The cubic root of 55719550 is about 381.9464989078.

The spelling of 55719550 in words is "fifty-five million, seven hundred nineteen thousand, five hundred fifty".