155264507 has 4 divisors (see below), whose sum is σ = 158194080. Its totient is φ = 152334936.

The previous prime is 155264489. The next prime is 155264533. The reversal of 155264507 is 705462551.

155264507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 705462551 = 5009 ⋅140839.

It is a cyclic number.

It is not a de Polignac number, because 155264507 - 2²⁴ = 138487291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155264537) 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, 1464707 + ... + 1464812.

It is an arithmetic number, because the mean of its divisors is an integer number (39548520).

Almost surely, 2^155264507 is an apocalyptic number.

155264507 is a deficient number, since it is larger than the sum of its proper divisors (2929573).

155264507 is an equidigital number, since it uses as much as digits as its factorization.

155264507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929572.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 155264507 is about 12460.5179266353. The cubic root of 155264507 is about 537.4739206384.

The spelling of 155264507 in words is "one hundred fifty-five million, two hundred sixty-four thousand, five hundred seven".