245212545533 has 2 divisors, whose sum is σ = 245212545534. Its totient is φ = 245212545532.

The previous prime is 245212545509. The next prime is 245212545563. The reversal of 245212545533 is 335545212542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186553158724 + 58659386809 = 431918^2 + 242197^2 .

It is a cyclic number.

It is not a de Polignac number, because 245212545533 - 2¹⁰ = 245212544509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245212545563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122606272766 + 122606272767.

It is an arithmetic number, because the mean of its divisors is an integer number (122606272767).

Almost surely, 2^245212545533 is an apocalyptic number.

It is an amenable number.

245212545533 is a deficient number, since it is larger than the sum of its proper divisors (1).

245212545533 is an equidigital number, since it uses as much as digits as its factorization.

245212545533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720000, while the sum is 41.

The spelling of 245212545533 in words is "two hundred forty-five billion, two hundred twelve million, five hundred forty-five thousand, five hundred thirty-three".