52278000 has 80 divisors (see below), whose sum is σ = 168563616. Its totient is φ = 13939200.

The previous prime is 52277999. The next prime is 52278007. The reversal of 52278000 is 87225.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52278007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1644 + ... + 10356.

Almost surely, 2^52278000 is an apocalyptic number.

52278000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52278000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84281808).

52278000 is an abundant number, since it is smaller than the sum of its proper divisors (116285616).

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

52278000 is a wasteful number, since it uses less digits than its factorization.

52278000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8739 (or 8723 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 52278000 is about 7230.3526884931. The cubic root of 52278000 is about 373.9150864829.

The spelling of 52278000 in words is "fifty-two million, two hundred seventy-eight thousand".