55135502450 has 96 divisors (see below), whose sum is σ = 130628246400. Its totient is φ = 16855188480.

The previous prime is 55135502437. The next prime is 55135502491. The reversal of 55135502450 is 5420553155.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 55135502450.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 130805 + ... + 356904.

It is an arithmetic number, because the mean of its divisors is an integer number (1360710900).

Almost surely, 2^55135502450 is an apocalyptic number.

55135502450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55135502450 is an abundant number, since it is smaller than the sum of its proper divisors (75492743950).

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

55135502450 is a wasteful number, since it uses less digits than its factorization.

55135502450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487764 (or 487759 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 35.

The spelling of 55135502450 in words is "fifty-five billion, one hundred thirty-five million, five hundred two thousand, four hundred fifty".