252605550 has 192 divisors, whose sum is σ = 713525760. Its totient is φ = 58798080.

The previous prime is 252605531. The next prime is 252605569. The reversal of 252605550 is 55506252.

It is an interprime number because it is at equal distance from previous prime (252605531) and next prime (252605569).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3460314 + ... + 3460386.

It is an arithmetic number, because the mean of its divisors is an integer number (3716280).

Almost surely, 2^252605550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252605550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356762880).

252605550 is an abundant number, since it is smaller than the sum of its proper divisors (460920210).

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

252605550 is a wasteful number, since it uses less digits than its factorization.

252605550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 252605550 is about 15893.5694543422. The cubic root of 252605550 is about 632.1414904463.

The spelling of 252605550 in words is "two hundred fifty-two million, six hundred five thousand, five hundred fifty".