155263755 has 16 divisors (see below), whose sum is σ = 254200320. Its totient is φ = 80881248.

The previous prime is 155263753. The next prime is 155263769. The reversal of 155263755 is 557362551.

It is not a de Polignac number, because 155263755 - 2¹ = 155263753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155263753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119715 + ... + 121004.

It is an arithmetic number, because the mean of its divisors is an integer number (15887520).

Almost surely, 2^155263755 is an apocalyptic number.

155263755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155263755 is a deficient number, since it is larger than the sum of its proper divisors (98936565).

155263755 is a wasteful number, since it uses less digits than its factorization.

155263755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240770.

The product of its digits is 157500, while the sum is 39.

The square root of 155263755 is about 12460.4877512881. The cubic root of 155263755 is about 537.4730529126.

The spelling of 155263755 in words is "one hundred fifty-five million, two hundred sixty-three thousand, seven hundred fifty-five".