40225321445551 has 32 divisors (see below), whose sum is σ = 46058652009216. Its totient is φ = 34800827040000.

The previous prime is 40225321445513. The next prime is 40225321445611. The reversal of 40225321445551 is 15554412352204.

It is a cyclic number.

It is not a de Polignac number, because 40225321445551 - 2³¹ = 40223173961903 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 40225321445498 and 40225321445507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40225321445651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13310476 + ... + 16050526.

It is an arithmetic number, because the mean of its divisors is an integer number (1439332875288).

Almost surely, 2^{40225321445551} is an apocalyptic number.

40225321445551 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

40225321445551 is a deficient number, since it is larger than the sum of its proper divisors (5833330563665).

40225321445551 is a wasteful number, since it uses less digits than its factorization.

40225321445551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740903.

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

Adding to 40225321445551 its reverse (15554412352204), we get a palindrome (55779733797755).

The spelling of 40225321445551 in words is "forty trillion, two hundred twenty-five billion, three hundred twenty-one million, four hundred forty-five thousand, five hundred fifty-one".