154450535421225 has 48 divisors (see below), whose sum is σ = 255440974159872. Its totient is φ = 82346927607360.

The previous prime is 154450535421223. The next prime is 154450535421241. The reversal of 154450535421225 is 522124535054451.

It is not a de Polignac number, because 154450535421225 - 2¹ = 154450535421223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154450535421223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4817079544 + ... + 4817111606.

It is an arithmetic number, because the mean of its divisors is an integer number (5321686961664).

Almost surely, 2^{154450535421225} is an apocalyptic number.

154450535421225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

154450535421225 is a deficient number, since it is larger than the sum of its proper divisors (100990438738647).

154450535421225 is a wasteful number, since it uses less digits than its factorization.

154450535421225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50886 (or 50881 counting only the distinct ones).

The product of its (nonzero) digits is 4800000, while the sum is 48.

The spelling of 154450535421225 in words is "one hundred fifty-four trillion, four hundred fifty billion, five hundred thirty-five million, four hundred twenty-one thousand, two hundred twenty-five".