155225454 has 16 divisors (see below), whose sum is σ = 314824320. Its totient is φ = 51012920.

The previous prime is 155225417. The next prime is 155225479. The reversal of 155225454 is 454522551.

155225454 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×155225454² = 48189883139012232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181764 + ... + 182615.

It is an arithmetic number, because the mean of its divisors is an integer number (19676520).

Almost surely, 2^155225454 is an apocalyptic number.

155225454 is an abundant number, since it is smaller than the sum of its proper divisors (159598866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155225454 is a wasteful number, since it uses less digits than its factorization.

155225454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364455.

The product of its digits is 40000, while the sum is 33.

The square root of 155225454 is about 12458.9507583905. The cubic root of 155225454 is about 537.4288540409.

The spelling of 155225454 in words is "one hundred fifty-five million, two hundred twenty-five thousand, four hundred fifty-four".