2501890578 has 96 divisors (see below), whose sum is σ = 6493556160. Its totient is φ = 713525760.

The previous prime is 2501890553. The next prime is 2501890583. The reversal of 2501890578 is 8750981052.

It is a happy number.

2501890578 is a `hidden beast` number, since 2 + 501 + 8 + 90 + 57 + 8 = 666.

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, 77118 + ... + 104646.

It is an arithmetic number, because the mean of its divisors is an integer number (67641210).

Almost surely, 2^2501890578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2501890578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3246778080).

2501890578 is an abundant number, since it is smaller than the sum of its proper divisors (3991665582).

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

2501890578 is a wasteful number, since it uses less digits than its factorization.

2501890578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27574 (or 27562 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The square root of 2501890578 is about 50018.9022070657. The cubic root of 2501890578 is about 1357.5508433080.

The spelling of 2501890578 in words is "two billion, five hundred one million, eight hundred ninety thousand, five hundred seventy-eight".