2520627491 has 8 divisors (see below), whose sum is σ = 2531386704. Its totient is φ = 2509885440.

The previous prime is 2520627469. The next prime is 2520627497. The reversal of 2520627491 is 1947260252.

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

It is a cyclic number.

It is not a de Polignac number, because 2520627491 - 2⁶ = 2520627427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2520627497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350411 + ... + 357531.

It is an arithmetic number, because the mean of its divisors is an integer number (316423338).

Almost surely, 2^2520627491 is an apocalyptic number.

2520627491 is a deficient number, since it is larger than the sum of its proper divisors (10759213).

2520627491 is a wasteful number, since it uses less digits than its factorization.

2520627491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8581.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 2520627491 is about 50205.8511629870. The cubic root of 2520627491 is about 1360.9313637261.

The spelling of 2520627491 in words is "two billion, five hundred twenty million, six hundred twenty-seven thousand, four hundred ninety-one".