52977078 has 160 divisors (see below), whose sum is σ = 153888768. Its totient is φ = 13219200.

The previous prime is 52977059. The next prime is 52977079. The reversal of 52977078 is 87077925.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52977079) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 386626 + ... + 386762.

Almost surely, 2^52977078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52977078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76944384).

52977078 is an abundant number, since it is smaller than the sum of its proper divisors (100911690).

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

52977078 is a wasteful number, since it uses less digits than its factorization.

52977078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 45.

The square root of 52977078 is about 7278.5354296040. The cubic root of 52977078 is about 375.5744156751.

The spelling of 52977078 in words is "fifty-two million, nine hundred seventy-seven thousand, seventy-eight".