155052077 has 4 divisors (see below), whose sum is σ = 155233440. Its totient is φ = 154870716.

The previous prime is 155052043. The next prime is 155052091. The reversal of 155052077 is 770250551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 155052077 - 2¹⁶ = 154986541 is a prime.

It is a super-2 number, since 2×155052077² = 48082293164027858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155052097) 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, 89393 + ... + 91110.

It is an arithmetic number, because the mean of its divisors is an integer number (38808360).

Almost surely, 2^155052077 is an apocalyptic number.

It is an amenable number.

155052077 is a deficient number, since it is larger than the sum of its proper divisors (181363).

155052077 is an equidigital number, since it uses as much as digits as its factorization.

155052077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181362.

The product of its (nonzero) digits is 12250, while the sum is 32.

The square root of 155052077 is about 12451.9908849951. The cubic root of 155052077 is about 537.2286881686.

The spelling of 155052077 in words is "one hundred fifty-five million, fifty-two thousand, seventy-seven".