155883798 has 48 divisors (see below), whose sum is σ = 402971760. Its totient is φ = 44537472.

The previous prime is 155883781. The next prime is 155883803. The reversal of 155883798 is 897388551.

155883798 is a `hidden beast` number, since 1 + 558 + 83 + 7 + 9 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26811 + ... + 32102.

It is an arithmetic number, because the mean of its divisors is an integer number (8395245).

Almost surely, 2^155883798 is an apocalyptic number.

155883798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

155883798 is an abundant number, since it is smaller than the sum of its proper divisors (247087962).

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

155883798 is a wasteful number, since it uses less digits than its factorization.

155883798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58938 (or 58925 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 54.

The square root of 155883798 is about 12485.3433272778. The cubic root of 155883798 is about 538.1875655988.

The spelling of 155883798 in words is "one hundred fifty-five million, eight hundred eighty-three thousand, seven hundred ninety-eight".