2540052450 has 144 divisors (see below), whose sum is σ = 7781830056. Its totient is φ = 588441600.

The previous prime is 2540052421. The next prime is 2540052457. The reversal of 2540052450 is 542500452.

It can be written as a sum of positive squares in 12 ways, for example, as 78801129 + 2461251321 = 8877^2 + 49611^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2540052457) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 86680 + ... + 112220.

Almost surely, 2^2540052450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2540052450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3890915028).

2540052450 is an abundant number, since it is smaller than the sum of its proper divisors (5241777606).

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

2540052450 is a wasteful number, since it uses less digits than its factorization.

2540052450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25589 (or 25581 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 2540052450 is about 50398.9330244203. The cubic root of 2540052450 is about 1364.4183812008.

The spelling of 2540052450 in words is "two billion, five hundred forty million, fifty-two thousand, four hundred fifty".