53661742250 has 32 divisors (see below), whose sum is σ = 100472413392. Its totient is φ = 21460929600.

The previous prime is 53661742249. The next prime is 53661742301. The reversal of 53661742250 is 5224716635.

It can be written as a sum of positive squares in 8 ways, for example, as 2430588601 + 51231153649 = 49301^2 + 226343^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53661742198 and 53661742207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1733912 + ... + 1764588.

Almost surely, 2^53661742250 is an apocalyptic number.

53661742250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53661742250 is a deficient number, since it is larger than the sum of its proper divisors (46810671142).

53661742250 is a wasteful number, since it uses less digits than its factorization.

53661742250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37691 (or 37681 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 53661742250 in words is "fifty-three billion, six hundred sixty-one million, seven hundred forty-two thousand, two hundred fifty".