155755470 has 96 divisors (see below), whose sum is σ = 418258944. Its totient is φ = 37065600.

The previous prime is 155755427. The next prime is 155755487. The reversal of 155755470 is 74557551.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 156675 + ... + 157665.

It is an arithmetic number, because the mean of its divisors is an integer number (4356864).

Almost surely, 2^155755470 is an apocalyptic number.

155755470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 155755470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209129472).

155755470 is an abundant number, since it is smaller than the sum of its proper divisors (262503474).

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

155755470 is a wasteful number, since it uses less digits than its factorization.

155755470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 122500, while the sum is 39.

The square root of 155755470 is about 12480.2031233470. The cubic root of 155755470 is about 538.0398412566.

The spelling of 155755470 in words is "one hundred fifty-five million, seven hundred fifty-five thousand, four hundred seventy".