2521214587 has 4 divisors (see below), whose sum is σ = 2521566936. Its totient is φ = 2520862240.

The previous prime is 2521214573. The next prime is 2521214629. The reversal of 2521214587 is 7854121252.

It is a happy number.

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 2521214587 - 2⁷ = 2521214459 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2521214537) 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, 165214 + ... + 179827.

It is an arithmetic number, because the mean of its divisors is an integer number (630391734).

Almost surely, 2^2521214587 is an apocalyptic number.

2521214587 is a deficient number, since it is larger than the sum of its proper divisors (352349).

2521214587 is an equidigital number, since it uses as much as digits as its factorization.

2521214587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352348.

The product of its digits is 44800, while the sum is 37.

The square root of 2521214587 is about 50211.6977107925. The cubic root of 2521214587 is about 1361.0370166951.

The spelling of 2521214587 in words is "two billion, five hundred twenty-one million, two hundred fourteen thousand, five hundred eighty-seven".