2551203323531 has 2 divisors, whose sum is σ = 2551203323532. Its totient is φ = 2551203323530.

The previous prime is 2551203323497. The next prime is 2551203323551. The reversal of 2551203323531 is 1353233021552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2551203323531 - 2²⁶ = 2551136214667 is a prime.

It is a super-2 number, since 2×2551203323531² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2551203323491 and 2551203323500.

It is not a weakly prime, because it can be changed into another prime (2551203323551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275601661765 + 1275601661766.

It is an arithmetic number, because the mean of its divisors is an integer number (1275601661766).

Almost surely, 2^{2551203323531} is an apocalyptic number.

2551203323531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551203323531 is an equidigital number, since it uses as much as digits as its factorization.

2551203323531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81000, while the sum is 35.

The spelling of 2551203323531 in words is "two trillion, five hundred fifty-one billion, two hundred three million, three hundred twenty-three thousand, five hundred thirty-one".