43455500452551 has 32 divisors (see below), whose sum is σ = 63360761651712. Its totient is φ = 26273029570560.

The previous prime is 43455500452519. The next prime is 43455500452591. The reversal of 43455500452551 is 15525400555434.

It is not a de Polignac number, because 43455500452551 - 2⁵ = 43455500452519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43455500452551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43455500452501) 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, 137345031 + ... + 137661063.

It is an arithmetic number, because the mean of its divisors is an integer number (1980023801616).

Almost surely, 2^{43455500452551} is an apocalyptic number.

43455500452551 is a deficient number, since it is larger than the sum of its proper divisors (19905261199161).

43455500452551 is a wasteful number, since it uses less digits than its factorization.

43455500452551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326103.

The product of its (nonzero) digits is 6000000, while the sum is 48.

The spelling of 43455500452551 in words is "forty-three trillion, four hundred fifty-five billion, five hundred million, four hundred fifty-two thousand, five hundred fifty-one".