53122250550 has 48 divisors (see below), whose sum is σ = 134546245632. Its totient is φ = 13864528800.

The previous prime is 53122250509. The next prime is 53122250581. The reversal of 53122250550 is 5505222135.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3760486 + ... + 3774585.

It is an arithmetic number, because the mean of its divisors is an integer number (2803046784).

Almost surely, 2^53122250550 is an apocalyptic number.

53122250550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53122250550 is an abundant number, since it is smaller than the sum of its proper divisors (81423995082).

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

53122250550 is a wasteful number, since it uses less digits than its factorization.

53122250550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7535133 (or 7535128 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

Adding to 53122250550 its reverse (5505222135), we get a palindrome (58627472685).

The spelling of 53122250550 in words is "fifty-three billion, one hundred twenty-two million, two hundred fifty thousand, five hundred fifty".