52494780 has 144 divisors (see below), whose sum is σ = 165279744. Its totient is φ = 12430080.

The previous prime is 52494769. The next prime is 52494791. The reversal of 52494780 is 8749425.

It is an interprime number because it is at equal distance from previous prime (52494769) and next prime (52494791).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 314257 + ... + 314423.

It is an arithmetic number, because the mean of its divisors is an integer number (1147776).

Almost surely, 2^52494780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52494780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82639872).

52494780 is an abundant number, since it is smaller than the sum of its proper divisors (112784964).

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

52494780 is a wasteful number, since it uses less digits than its factorization.

52494780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 52494780 is about 7245.3281499184. The cubic root of 52494780 is about 374.4312088182.

The spelling of 52494780 in words is "fifty-two million, four hundred ninety-four thousand, seven hundred eighty".