653115078 has 192 divisors, whose sum is σ = 1906924032. Its totient is φ = 156349440.

The previous prime is 653115059. The next prime is 653115091. The reversal of 653115078 is 870511356.

653115078 is a `hidden beast` number, since 6 + 531 + 1 + 50 + 78 = 666.

It is a super-2 number, since 2×653115078² = 853118610221892168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1248525 + ... + 1249047.

It is an arithmetic number, because the mean of its divisors is an integer number (9931896).

Almost surely, 2^653115078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 653115078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (953462016).

653115078 is an abundant number, since it is smaller than the sum of its proper divisors (1253808954).

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

653115078 is a wasteful number, since it uses less digits than its factorization.

653115078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 653115078 is about 25556.1162542355. The cubic root of 653115078 is about 867.6206967190.

It can be divided in two parts, 6531 and 15078, that added together give a square (21609 = 147²).

The spelling of 653115078 in words is "six hundred fifty-three million, one hundred fifteen thousand, seventy-eight".