245550694399 has 4 divisors (see below), whose sum is σ = 245572933264. Its totient is φ = 245528455536.

The previous prime is 245550694393. The next prime is 245550694423. The reversal of 245550694399 is 993496055542.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993496055542 = 2 ⋅496748027771.

It is a cyclic number.

It is not a de Polignac number, because 245550694399 - 2²¹ = 245548597247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245550694393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11102862 + ... + 11124955.

It is an arithmetic number, because the mean of its divisors is an integer number (61393233316).

Almost surely, 2^245550694399 is an apocalyptic number.

245550694399 is a deficient number, since it is larger than the sum of its proper divisors (22238865).

245550694399 is a wasteful number, since it uses less digits than its factorization.

245550694399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22238864.

The product of its (nonzero) digits is 52488000, while the sum is 61.

The spelling of 245550694399 in words is "two hundred forty-five billion, five hundred fifty million, six hundred ninety-four thousand, three hundred ninety-nine".