155225495 has 4 divisors (see below), whose sum is σ = 186270600. Its totient is φ = 124180392.

The previous prime is 155225491. The next prime is 155225503. The reversal of 155225495 is 594522551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155225495 - 2² = 155225491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155225491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15522545 + ... + 15522554.

It is an arithmetic number, because the mean of its divisors is an integer number (46567650).

Almost surely, 2^155225495 is an apocalyptic number.

155225495 is a deficient number, since it is larger than the sum of its proper divisors (31045105).

155225495 is an equidigital number, since it uses as much as digits as its factorization.

155225495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31045104.

The product of its digits is 90000, while the sum is 38.

The square root of 155225495 is about 12458.9524037938. The cubic root of 155225495 is about 537.4289013583.

The spelling of 155225495 in words is "one hundred fifty-five million, two hundred twenty-five thousand, four hundred ninety-five".