245496551 has 2 divisors, whose sum is σ = 245496552. Its totient is φ = 245496550.

The previous prime is 245496547. The next prime is 245496593. The reversal of 245496551 is 155694542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245496551 - 2² = 245496547 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 245496499 and 245496508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245496521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122748275 + 122748276.

It is an arithmetic number, because the mean of its divisors is an integer number (122748276).

Almost surely, 2^245496551 is an apocalyptic number.

245496551 is a deficient number, since it is larger than the sum of its proper divisors (1).

245496551 is an equidigital number, since it uses as much as digits as its factorization.

245496551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216000, while the sum is 41.

The square root of 245496551 is about 15668.3295535931. The cubic root of 245496551 is about 626.1549213893.

The spelling of 245496551 in words is "two hundred forty-five million, four hundred ninety-six thousand, five hundred fifty-one".