2521629247 has 2 divisors, whose sum is σ = 2521629248. Its totient is φ = 2521629246.

The previous prime is 2521629223. The next prime is 2521629287. The reversal of 2521629247 is 7429261252.

It is an a-pointer prime, because the next prime (2521629287) can be obtained adding 2521629247 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2521629247 is a prime.

It is a super-2 number, since 2×2521629247² = 12717228118651574018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2521629287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260814623 + 1260814624.

It is an arithmetic number, because the mean of its divisors is an integer number (1260814624).

Almost surely, 2^2521629247 is an apocalyptic number.

2521629247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521629247 is an equidigital number, since it uses as much as digits as its factorization.

2521629247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 2521629247 is about 50215.8266585347. The cubic root of 2521629247 is about 1361.1116284418. Note that the first 3 decimals are identical.

The spelling of 2521629247 in words is "two billion, five hundred twenty-one million, six hundred twenty-nine thousand, two hundred forty-seven".