78573052 has 24 divisors (see below), whose sum is σ = 141629040. Its totient is φ = 38113920.

The previous prime is 78573043. The next prime is 78573059. The reversal of 78573052 is 25037587.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78573059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76599 + ... + 77617.

It is an arithmetic number, because the mean of its divisors is an integer number (5901210).

Almost surely, 2^78573052 is an apocalyptic number.

It is an amenable number.

78573052 is a deficient number, since it is larger than the sum of its proper divisors (63055988).

78573052 is a wasteful number, since it uses less digits than its factorization.

78573052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581 (or 1579 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 78573052 is about 8864.1441775278. The cubic root of 78573052 is about 428.3096646809.

It can be divided in two parts, 785 and 73052, that added together give a palindrome (73837).

The spelling of 78573052 in words is "seventy-eight million, five hundred seventy-three thousand, fifty-two".