2521263228248 has 8 divisors (see below), whose sum is σ = 4727368552980. Its totient is φ = 1260631614120.

The previous prime is 2521263228247. The next prime is 2521263228269. The reversal of 2521263228248 is 8428223621252.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2521263228248² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521263228247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157578951758 + ... + 157578951773.

Almost surely, 2^{2521263228248} is an apocalyptic number.

It is an amenable number.

2521263228248 is a deficient number, since it is larger than the sum of its proper divisors (2206105324732).

2521263228248 is a wasteful number, since it uses less digits than its factorization.

2521263228248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315157903537 (or 315157903533 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 47.

The spelling of 2521263228248 in words is "two trillion, five hundred twenty-one billion, two hundred sixty-three million, two hundred twenty-eight thousand, two hundred forty-eight".