245523022251 has 32 divisors (see below), whose sum is σ = 371150330880. Its totient is φ = 143119872000.

The previous prime is 245523022229. The next prime is 245523022321. The reversal of 245523022251 is 152220325542.

It is not a de Polignac number, because 245523022251 - 2⁶ = 245523022187 is a prime.

It is a super-2 number, since 2×245523022251² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245523022211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7097086 + ... + 7131596.

It is an arithmetic number, because the mean of its divisors is an integer number (11598447840).

Almost surely, 2^245523022251 is an apocalyptic number.

245523022251 is a deficient number, since it is larger than the sum of its proper divisors (125627308629).

245523022251 is a wasteful number, since it uses less digits than its factorization.

245523022251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44147.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 245523022251 its reverse (152220325542), we get a palindrome (397743347793).

The spelling of 245523022251 in words is "two hundred forty-five billion, five hundred twenty-three million, twenty-two thousand, two hundred fifty-one".