245364361553 has 2 divisors, whose sum is σ = 245364361554. Its totient is φ = 245364361552.

The previous prime is 245364361523. The next prime is 245364361559. The reversal of 245364361553 is 355163463542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151626129664 + 93738231889 = 389392^2 + 306167^2 .

It is a cyclic number.

It is not a de Polignac number, because 245364361553 - 2²² = 245360167249 is a prime.

It is a super-2 number, since 2×245364361553² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245364361498 and 245364361507.

It is not a weakly prime, because it can be changed into another prime (245364361559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122682180776 + 122682180777.

It is an arithmetic number, because the mean of its divisors is an integer number (122682180777).

Almost surely, 2^245364361553 is an apocalyptic number.

It is an amenable number.

245364361553 is a deficient number, since it is larger than the sum of its proper divisors (1).

245364361553 is an equidigital number, since it uses as much as digits as its factorization.

245364361553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888000, while the sum is 47.

The spelling of 245364361553 in words is "two hundred forty-five billion, three hundred sixty-four million, three hundred sixty-one thousand, five hundred fifty-three".