245212533553 has 6 divisors (see below), whose sum is σ = 265525998054. Its totient is φ = 226350030816.

The previous prime is 245212533499. The next prime is 245212533589. The reversal of 245212533553 is 355335212542.

It can be written as a sum of positive squares in 3 ways, for example, as 1879482609 + 243333050944 = 43353^2 + 493288^2 .

It is not a de Polignac number, because 245212533553 - 2¹³ = 245212525361 is a prime.

It is a super-2 number, since 2×245212533553² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245212533253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 725480700 + ... + 725481037.

It is an arithmetic number, because the mean of its divisors is an integer number (44254333009).

Almost surely, 2^245212533553 is an apocalyptic number.

It is an amenable number.

245212533553 is a deficient number, since it is larger than the sum of its proper divisors (20313464501).

245212533553 is a wasteful number, since it uses less digits than its factorization.

245212533553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450961763 (or 1450961750 counting only the distinct ones).

The product of its digits is 540000, while the sum is 40.

The spelling of 245212533553 in words is "two hundred forty-five billion, two hundred twelve million, five hundred thirty-three thousand, five hundred fifty-three".