245473242531 has 16 divisors (see below), whose sum is σ = 357312107520. Its totient is φ = 148663279520.

The previous prime is 245473242503. The next prime is 245473242587. The reversal of 245473242531 is 135242374542.

It is a cyclic number.

It is not a de Polignac number, because 245473242531 - 2⁶ = 245473242467 is a prime.

It is a super-2 number, since 2×245473242531² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245473242031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2663571 + ... + 2754188.

It is an arithmetic number, because the mean of its divisors is an integer number (22332006720).

Almost surely, 2^245473242531 is an apocalyptic number.

245473242531 is a deficient number, since it is larger than the sum of its proper divisors (111838864989).

245473242531 is a wasteful number, since it uses less digits than its factorization.

245473242531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5419146.

The product of its digits is 806400, while the sum is 42.

The spelling of 245473242531 in words is "two hundred forty-five billion, four hundred seventy-three million, two hundred forty-two thousand, five hundred thirty-one".