55402525250 has 16 divisors (see below), whose sum is σ = 103713527736. Its totient is φ = 22161010000.

The previous prime is 55402525229. The next prime is 55402525253. The reversal of 55402525250 is 5252520455.

It can be written as a sum of positive squares in 4 ways, for example, as 21446723809 + 33955801441 = 146447^2 + 184271^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55402525250.

It is not an unprimeable number, because it can be changed into a prime (55402525253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110804801 + ... + 110805300.

Almost surely, 2^55402525250 is an apocalyptic number.

55402525250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55402525250 is a deficient number, since it is larger than the sum of its proper divisors (48311002486).

55402525250 is a wasteful number, since it uses less digits than its factorization.

55402525250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221610118 (or 221610108 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 35.

The spelling of 55402525250 in words is "fifty-five billion, four hundred two million, five hundred twenty-five thousand, two hundred fifty".