1023155525254 has 4 divisors (see below), whose sum is σ = 1534733287884. Its totient is φ = 511577762626.

The previous prime is 1023155525209. The next prime is 1023155525407. The reversal of 1023155525254 is 4525255513201.

1023155525254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255788881312 + ... + 255788881315.

It is an arithmetic number, because the mean of its divisors is an integer number (383683321971).

Almost surely, 2^{1023155525254} is an apocalyptic number.

1023155525254 is a deficient number, since it is larger than the sum of its proper divisors (511577762630).

1023155525254 is an equidigital number, since it uses as much as digits as its factorization.

1023155525254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511577762629.

The product of its (nonzero) digits is 300000, while the sum is 40.

The spelling of 1023155525254 in words is "one trillion, twenty-three billion, one hundred fifty-five million, five hundred twenty-five thousand, two hundred fifty-four".