155765952 has 168 divisors, whose sum is σ = 482356160. Its totient is φ = 47900160.

The previous prime is 155765947. The next prime is 155765957. The reversal of 155765952 is 259567551.

155765952 is a `hidden beast` number, since 1 + 5 + 57 + 6 + 595 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (155765947) and next prime (155765957).

It is a junction number, because it is equal to n+sod(n) for n = 155765898 and 155765907.

It is not an unprimeable number, because it can be changed into a prime (155765957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 470427 + ... + 470757.

Almost surely, 2^155765952 is an apocalyptic number.

155765952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155765952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241178080).

155765952 is an abundant number, since it is smaller than the sum of its proper divisors (326590208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155765952 is a wasteful number, since it uses less digits than its factorization.

155765952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 398 counting only the distinct ones).

The product of its digits is 472500, while the sum is 45.

The square root of 155765952 is about 12480.6230613700. The cubic root of 155765952 is about 538.0519106178.

It can be divided in two parts, 15576 and 5952, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 155765952 in words is "one hundred fifty-five million, seven hundred sixty-five thousand, nine hundred fifty-two".