55049749450 has 24 divisors (see below), whose sum is σ = 102421444608. Its totient is φ = 22013682480.

The previous prime is 55049749429. The next prime is 55049749453. The reversal of 55049749450 is 5494794055.

It is not an unprimeable number, because it can be changed into a prime (55049749453) 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, 25509 + ... + 332791.

It is an arithmetic number, because the mean of its divisors is an integer number (4267560192).

Almost surely, 2^55049749450 is an apocalyptic number.

55049749450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55049749450 is a deficient number, since it is larger than the sum of its proper divisors (47371695158).

55049749450 is a wasteful number, since it uses less digits than its factorization.

55049749450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310878 (or 310873 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 52.

The spelling of 55049749450 in words is "fifty-five billion, forty-nine million, seven hundred forty-nine thousand, four hundred fifty".