155224804 has 24 divisors (see below), whose sum is σ = 310722048. Its totient is φ = 66466560.

The previous prime is 155224789. The next prime is 155224819. The reversal of 155224804 is 408422551.

It is an interprime number because it is at equal distance from previous prime (155224789) and next prime (155224819).

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 49524 + ... + 52564.

It is an arithmetic number, because the mean of its divisors is an integer number (12946752).

Almost surely, 2^155224804 is an apocalyptic number.

155224804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

155224804 is an abundant number, since it is smaller than the sum of its proper divisors (155497244).

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

155224804 is a wasteful number, since it uses less digits than its factorization.

155224804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4875 (or 4873 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 155224804 is about 12458.9246726995. The cubic root of 155224804 is about 537.4281038864.

The spelling of 155224804 in words is "one hundred fifty-five million, two hundred twenty-four thousand, eight hundred four".