45250221654520 has 64 divisors (see below), whose sum is σ = 103105616947200. Its totient is φ = 17870306962560.

The previous prime is 45250221654487. The next prime is 45250221654553. The reversal of 45250221654520 is 2545612205254.

It is an interprime number because it is at equal distance from previous prime (45250221654487) and next prime (45250221654553).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89197185 + ... + 89703055.

It is an arithmetic number, because the mean of its divisors is an integer number (1611025264800).

Almost surely, 2^{45250221654520} is an apocalyptic number.

45250221654520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45250221654520 is an abundant number, since it is smaller than the sum of its proper divisors (57855395292680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45250221654520 is a wasteful number, since it uses less digits than its factorization.

45250221654520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534268 (or 534264 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 43.

Adding to 45250221654520 its reverse (2545612205254), we get a palindrome (47795833859774).

The spelling of 45250221654520 in words is "forty-five trillion, two hundred fifty billion, two hundred twenty-one million, six hundred fifty-four thousand, five hundred twenty".