162400255 has 4 divisors (see below), whose sum is σ = 194880312. Its totient is φ = 129920200.

The previous prime is 162400247. The next prime is 162400267. The reversal of 162400255 is 552004261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 552004261 = 233 ⋅2369117.

It is not a de Polignac number, because 162400255 - 2³ = 162400247 is a prime.

It is a Duffinian number.

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, 16240021 + ... + 16240030.

It is an arithmetic number, because the mean of its divisors is an integer number (48720078).

Almost surely, 2^162400255 is an apocalyptic number.

162400255 is a deficient number, since it is larger than the sum of its proper divisors (32480057).

162400255 is an equidigital number, since it uses as much as digits as its factorization.

162400255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32480056.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 162400255 is about 12743.6358626571. The cubic root of 162400255 is about 545.5847663877.

The spelling of 162400255 in words is "one hundred sixty-two million, four hundred thousand, two hundred fifty-five".