2545467081 has 8 divisors (see below), whose sum is σ = 3425093760. Its totient is φ = 1681409232.

The previous prime is 2545467077. The next prime is 2545467097. The reversal of 2545467081 is 1807645452.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2545467081 - 2² = 2545467077 is a prime.

It is a super-2 number, since 2×2545467081² = 12958805320909321122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2545467581) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3891825 + ... + 3892478.

It is an arithmetic number, because the mean of its divisors is an integer number (428136720).

Almost surely, 2^2545467081 is an apocalyptic number.

It is an amenable number.

2545467081 is a deficient number, since it is larger than the sum of its proper divisors (879626679).

2545467081 is a wasteful number, since it uses less digits than its factorization.

2545467081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7784415.

The product of its (nonzero) digits is 268800, while the sum is 42.

The square root of 2545467081 is about 50452.6221419660. The cubic root of 2545467081 is about 1365.3872035481.

The spelling of 2545467081 in words is "two billion, five hundred forty-five million, four hundred sixty-seven thousand, eighty-one".