2553502578 has 64 divisors (see below), whose sum is σ = 5995866240. Its totient is φ = 716313600.

The previous prime is 2553502499. The next prime is 2553502579. The reversal of 2553502578 is 8752053552.

It is a happy number.

2553502578 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2553502579) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49788 + ... + 87096.

It is an arithmetic number, because the mean of its divisors is an integer number (93685410).

Almost surely, 2^2553502578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2553502578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2997933120).

2553502578 is an abundant number, since it is smaller than the sum of its proper divisors (3442363662).

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

2553502578 is a wasteful number, since it uses less digits than its factorization.

2553502578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37403.

The product of its (nonzero) digits is 420000, while the sum is 42.

The square root of 2553502578 is about 50532.1934809879. The cubic root of 2553502578 is about 1366.8224398158.

The spelling of 2553502578 in words is "two billion, five hundred fifty-three million, five hundred two thousand, five hundred seventy-eight".