1263504252 has 24 divisors (see below), whose sum is σ = 2949004800. Its totient is φ = 421049776.

The previous prime is 1263504251. The next prime is 1263504299. The reversal of 1263504252 is 2524053621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263504251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36949 + ... + 62387.

It is an arithmetic number, because the mean of its divisors is an integer number (122875200).

Almost surely, 2^1263504252 is an apocalyptic number.

1263504252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1263504252 is an abundant number, since it is smaller than the sum of its proper divisors (1685500548).

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

1263504252 is a wasteful number, since it uses less digits than its factorization.

1263504252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29585 (or 29583 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1263504252 is about 35545.8049845548. The cubic root of 1263504252 is about 1081.0826625909.

Adding to 1263504252 its reverse (2524053621), we get a palindrome (3787557873).

It can be divided in two parts, 1263 and 504252, that added together give a triangular number (505515 = T₁₀₀₅).

The spelling of 1263504252 in words is "one billion, two hundred sixty-three million, five hundred four thousand, two hundred fifty-two".