78052455 has 48 divisors (see below), whose sum is σ = 152058816. Its totient is φ = 36748800.

The previous prime is 78052433. The next prime is 78052493. The reversal of 78052455 is 55425087.

It is a happy number.

78052455 is a `hidden beast` number, since 7 + 80 + 524 + 55 = 666.

It is not a de Polignac number, because 78052455 - 2¹⁵ = 78019687 is a prime.

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, 10555 + ... + 16355.

It is an arithmetic number, because the mean of its divisors is an integer number (3167892).

Almost surely, 2^78052455 is an apocalyptic number.

78052455 is a deficient number, since it is larger than the sum of its proper divisors (74006361).

78052455 is a wasteful number, since it uses less digits than its factorization.

78052455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5848 (or 5845 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 78052455 is about 8834.7300468096. The cubic root of 78052455 is about 427.3616254729.

It can be divided in two parts, 780 and 52455, that added together give a palindrome (53235).

The spelling of 78052455 in words is "seventy-eight million, fifty-two thousand, four hundred fifty-five".