1453432001555 has 4 divisors (see below), whose sum is σ = 1744118401872. Its totient is φ = 1162745601240.

The previous prime is 1453432001419. The next prime is 1453432001561. The reversal of 1453432001555 is 5551002343541.

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

It is not a de Polignac number, because 1453432001555 - 2²⁰ = 1453430952979 is a prime.

It is a super-2 number, since 2×1453432001555² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145343200151 + ... + 145343200160.

It is an arithmetic number, because the mean of its divisors is an integer number (436029600468).

Almost surely, 2^{1453432001555} is an apocalyptic number.

1453432001555 is a deficient number, since it is larger than the sum of its proper divisors (290686400317).

1453432001555 is an equidigital number, since it uses as much as digits as its factorization.

1453432001555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290686400316.

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 1453432001555 in words is "one trillion, four hundred fifty-three billion, four hundred thirty-two million, one thousand, five hundred fifty-five".