155420225254 has 32 divisors (see below), whose sum is σ = 282731005440. Its totient is φ = 62632756032.

The previous prime is 155420225239. The next prime is 155420225269. The reversal of 155420225254 is 452522024551.

It is an interprime number because it is at equal distance from previous prime (155420225239) and next prime (155420225269).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4071439 + ... + 4109434.

It is an arithmetic number, because the mean of its divisors is an integer number (8835343920).

Almost surely, 2^155420225254 is an apocalyptic number.

155420225254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

155420225254 is a deficient number, since it is larger than the sum of its proper divisors (127310780186).

155420225254 is a wasteful number, since it uses less digits than its factorization.

155420225254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8180964.

The product of its (nonzero) digits is 160000, while the sum is 37.

The spelling of 155420225254 in words is "one hundred fifty-five billion, four hundred twenty million, two hundred twenty-five thousand, two hundred fifty-four".