155225254222552 has 16 divisors (see below), whose sum is σ = 291217654414800. Its totient is φ = 77567213045280.

The previous prime is 155225254222547. The next prime is 155225254222561. The reversal of 155225254222552 is 255222452522551.

It is a junction number, because it is equal to n+sod(n) for n = 155225254222496 and 155225254222505.

It is a congruent 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, 5676743724 + ... + 5676771067.

It is an arithmetic number, because the mean of its divisors is an integer number (18201103400925).

Almost surely, 2^{155225254222552} is an apocalyptic number.

It is an amenable number.

155225254222552 is a deficient number, since it is larger than the sum of its proper divisors (135992400192248).

155225254222552 is a wasteful number, since it uses less digits than its factorization.

155225254222552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11353516506 (or 11353516502 counting only the distinct ones).

The product of its digits is 8000000, while the sum is 49.

The spelling of 155225254222552 in words is "one hundred fifty-five trillion, two hundred twenty-five billion, two hundred fifty-four million, two hundred twenty-two thousand, five hundred fifty-two".