78282552 has 64 divisors (see below), whose sum is σ = 208219680. Its totient is φ = 24440832.

The previous prime is 78282551. The next prime is 78282553. The reversal of 78282552 is 25528287.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (78282551) and next prime (78282553).

It is a super-2 number, since 2×78282552² = 12256315895265408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78282552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78282551) 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, 127398 + ... + 128010.

Almost surely, 2^78282552 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 78282552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104109840).

78282552 is an abundant number, since it is smaller than the sum of its proper divisors (129937128).

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

78282552 is a wasteful number, since it uses less digits than its factorization.

78282552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952 (or 948 counting only the distinct ones).

The product of its digits is 89600, while the sum is 39.

The square root of 78282552 is about 8847.7427629876. The cubic root of 78282552 is about 427.7811645141.

The spelling of 78282552 in words is "seventy-eight million, two hundred eighty-two thousand, five hundred fifty-two".