1252352530 has 192 divisors, whose sum is σ = 2902936320. Its totient is φ = 384384000.

The previous prime is 1252352471. The next prime is 1252352531. The reversal of 1252352530 is 352532521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252352531) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12399480 + ... + 12399580.

It is an arithmetic number, because the mean of its divisors is an integer number (15119460).

Almost surely, 2^1252352530 is an apocalyptic number.

1252352530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1252352530 is an abundant number, since it is smaller than the sum of its proper divisors (1650583790).

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

1252352530 is a wasteful number, since it uses less digits than its factorization.

1252352530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 1252352530 is about 35388.5932187195. The cubic root of 1252352530 is about 1077.8927044776.

Subtracting from 1252352530 its reverse (352532521), we obtain a square (899820009 = 29997²).

It can be divided in two parts, 125235 and 2530, that added together give a triangular number (127765 = T₅₀₅).

The spelling of 1252352530 in words is "one billion, two hundred fifty-two million, three hundred fifty-two thousand, five hundred thirty".