245553746331 has 4 divisors (see below), whose sum is σ = 327404995112. Its totient is φ = 163702497552.

The previous prime is 245553746329. The next prime is 245553746359. The reversal of 245553746331 is 133647355542.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 245553746331 - 2¹ = 245553746329 is a prime.

It is a super-2 number, since 2×245553746331² (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 (245553746231) 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, 40925624386 + ... + 40925624391.

It is an arithmetic number, because the mean of its divisors is an integer number (81851248778).

Almost surely, 2^245553746331 is an apocalyptic number.

245553746331 is a deficient number, since it is larger than the sum of its proper divisors (81851248781).

245553746331 is an equidigital number, since it uses as much as digits as its factorization.

245553746331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81851248780.

The product of its digits is 4536000, while the sum is 48.

The spelling of 245553746331 in words is "two hundred forty-five billion, five hundred fifty-three million, seven hundred forty-six thousand, three hundred thirty-one".