53252778000 has 80 divisors (see below), whose sum is σ = 171686975616. Its totient is φ = 14200739200.

The previous prime is 53252777959. The next prime is 53252778079. The reversal of 53252778000 is 87725235.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 53252778000.

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, 4431732 + ... + 4443731.

Almost surely, 2^53252778000 is an apocalyptic number.

53252778000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53252778000 is an abundant number, since it is smaller than the sum of its proper divisors (118434197616).

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

53252778000 is a wasteful number, since it uses less digits than its factorization.

53252778000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8875489 (or 8875473 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 53252778000 in words is "fifty-three billion, two hundred fifty-two million, seven hundred seventy-eight thousand".