245536261503 has 24 divisors (see below), whose sum is σ = 361190815632. Its totient is φ = 148248292608.

The previous prime is 245536261501. The next prime is 245536261541. The reversal of 245536261503 is 305162635542.

It is a happy number.

It is not a de Polignac number, because 245536261503 - 2¹ = 245536261501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245536261501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4541926 + ... + 4595667.

It is an arithmetic number, because the mean of its divisors is an integer number (15049617318).

Almost surely, 2^245536261503 is an apocalyptic number.

245536261503 is a deficient number, since it is larger than the sum of its proper divisors (115654554129).

245536261503 is a wasteful number, since it uses less digits than its factorization.

245536261503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9137675 (or 9137662 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 245536261503 in words is "two hundred forty-five billion, five hundred thirty-six million, two hundred sixty-one thousand, five hundred three".