154025421152455 has 32 divisors (see below), whose sum is σ = 189145161409536. Its totient is φ = 120354599723904.

The previous prime is 154025421152443. The next prime is 154025421152459. The reversal of 154025421152455 is 554251124520451.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 154025421152455 - 2⁷ = 154025421152327 is a prime.

It is a super-2 number, since 2×154025421152455² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154025421152459) 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, 671790097 + ... + 672019333.

It is an arithmetic number, because the mean of its divisors is an integer number (5910786294048).

Almost surely, 2^{154025421152455} is an apocalyptic number.

154025421152455 is a deficient number, since it is larger than the sum of its proper divisors (35119740257081).

154025421152455 is a wasteful number, since it uses less digits than its factorization.

154025421152455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235063.

The product of its (nonzero) digits is 1600000, while the sum is 46.

The spelling of 154025421152455 in words is "one hundred fifty-four trillion, twenty-five billion, four hundred twenty-one million, one hundred fifty-two thousand, four hundred fifty-five".