155287796 has 12 divisors (see below), whose sum is σ = 273554400. Its totient is φ = 77129400.

The previous prime is 155287777. The next prime is 155287813. The reversal of 155287796 is 697782551.

It is a super-2 number, since 2×155287796² = 48228599173075232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127946 + ... + 129153.

It is an arithmetic number, because the mean of its divisors is an integer number (22796200).

Almost surely, 2^155287796 is an apocalyptic number.

It is an amenable number.

155287796 is a deficient number, since it is larger than the sum of its proper divisors (118266604).

155287796 is a wasteful number, since it uses less digits than its factorization.

155287796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257254 (or 257252 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 50.

The square root of 155287796 is about 12461.4524033116. The cubic root of 155287796 is about 537.5007922108.

The spelling of 155287796 in words is "one hundred fifty-five million, two hundred eighty-seven thousand, seven hundred ninety-six".