19551242 has 8 divisors (see below), whose sum is σ = 30602016. Its totient is φ = 9350572.

The previous prime is 19551239. The next prime is 19551251. The reversal of 19551242 is 24215591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212468 + ... + 212559.

It is an arithmetic number, because the mean of its divisors is an integer number (3825252).

Almost surely, 2^19551242 is an apocalyptic number.

19551242 is a deficient number, since it is larger than the sum of its proper divisors (11050774).

19551242 is a wasteful number, since it uses less digits than its factorization.

19551242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425052.

The product of its digits is 3600, while the sum is 29.

The square root of 19551242 is about 4421.6786405165. The cubic root of 19551242 is about 269.3961906984.

The spelling of 19551242 in words is "nineteen million, five hundred fifty-one thousand, two hundred forty-two".