2540035651 has 4 divisors (see below), whose sum is σ = 2554718112. Its totient is φ = 2525353192.

The previous prime is 2540035627. The next prime is 2540035697. The reversal of 2540035651 is 1565300452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2540035651 - 2¹³ = 2540027459 is a prime.

It is a super-2 number, since 2×2540035651² = 12903562216701987602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2540035601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7340971 + ... + 7341316.

It is an arithmetic number, because the mean of its divisors is an integer number (638679528).

Almost surely, 2^2540035651 is an apocalyptic number.

2540035651 is a deficient number, since it is larger than the sum of its proper divisors (14682461).

2540035651 is a wasteful number, since it uses less digits than its factorization.

2540035651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14682460.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 2540035651 is about 50398.7663638705. The cubic root of 2540035651 is about 1364.4153732688.

The spelling of 2540035651 in words is "two billion, five hundred forty million, thirty-five thousand, six hundred fifty-one".