55019496 has 128 divisors (see below), whose sum is σ = 170035200. Its totient is φ = 14488320.

The previous prime is 55019491. The next prime is 55019521. The reversal of 55019496 is 69491055.

It is not an unprimeable number, because it can be changed into a prime (55019491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111811 + ... + 112301.

It is an arithmetic number, because the mean of its divisors is an integer number (1328400).

Almost surely, 2^55019496 is an apocalyptic number.

55019496 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55019496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85017600).

55019496 is an abundant number, since it is smaller than the sum of its proper divisors (115015704).

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

55019496 is a wasteful number, since it uses less digits than its factorization.

55019496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 55019496 is about 7417.5127906866. The cubic root of 55019496 is about 380.3401755322.

The spelling of 55019496 in words is "fifty-five million, nineteen thousand, four hundred ninety-six".