58778500 has 48 divisors (see below), whose sum is σ = 140055552. Its totient is φ = 21372000.

The previous prime is 58778491. The next prime is 58778507. The reversal of 58778500 is 587785.

It is not an unprimeable number, because it can be changed into a prime (58778507) 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, 157 + ... + 10843.

It is an arithmetic number, because the mean of its divisors is an integer number (2917824).

Almost surely, 2^58778500 is an apocalyptic number.

58778500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 58778500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70027776).

58778500 is an abundant number, since it is smaller than the sum of its proper divisors (81277052).

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

58778500 is a wasteful number, since it uses less digits than its factorization.

58778500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10717 (or 10705 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 40.

The square root of 58778500 is about 7666.7137679713. The cubic root of 58778500 is about 388.8118562462.

Multiplying 58778500 by its reverse (587785), we get a square (34549120622500 = 5877850²).

58778500 divided by its reverse (587785) gives a square (100 = 10²).

The spelling of 58778500 in words is "fifty-eight million, seven hundred seventy-eight thousand, five hundred".