155226552 has 32 divisors (see below), whose sum is σ = 417918480. Its totient is φ = 47761920.

The previous prime is 155226551. The next prime is 155226553. The reversal of 155226552 is 255622551.

155226552 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (155226551) and next prime (155226553).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155226551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248449 + ... + 249072.

Almost surely, 2^155226552 is an apocalyptic number.

155226552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155226552 is an abundant number, since it is smaller than the sum of its proper divisors (262691928).

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

155226552 is a wasteful number, since it uses less digits than its factorization.

155226552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497543 (or 497539 counting only the distinct ones).

The product of its digits is 30000, while the sum is 33.

The square root of 155226552 is about 12458.9948230184. The cubic root of 155226552 is about 537.4301212203.

The spelling of 155226552 in words is "one hundred fifty-five million, two hundred twenty-six thousand, five hundred fifty-two".