1253005554551 has 2 divisors, whose sum is σ = 1253005554552. Its totient is φ = 1253005554550.

The previous prime is 1253005554499. The next prime is 1253005554557. The reversal of 1253005554551 is 1554555003521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1253005554551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1253005554499 and 1253005554508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1253005554557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626502777275 + 626502777276.

It is an arithmetic number, because the mean of its divisors is an integer number (626502777276).

Almost surely, 2^{1253005554551} is an apocalyptic number.

1253005554551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253005554551 is an equidigital number, since it uses as much as digits as its factorization.

1253005554551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 375000, while the sum is 41.

The spelling of 1253005554551 in words is "one trillion, two hundred fifty-three billion, five million, five hundred fifty-four thousand, five hundred fifty-one".