1252553490 has 64 divisors (see below), whose sum is σ = 3344382720. Its totient is φ = 333590400.

The previous prime is 1252553461. The next prime is 1252553501. The reversal of 1252553490 is 943552521.

It is a happy number.

1252553490 is a `hidden beast` number, since 12 + 5 + 2 + 553 + 4 + 90 = 666.

It is a super-2 number, since 2×1252553490² = 3137780490622360200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250515 + ... + 255465.

It is an arithmetic number, because the mean of its divisors is an integer number (52255980).

Almost surely, 2^1252553490 is an apocalyptic number.

1252553490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1252553490 is an abundant number, since it is smaller than the sum of its proper divisors (2091829230).

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

1252553490 is a wasteful number, since it uses less digits than its factorization.

1252553490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5904 (or 5898 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 1252553490 is about 35391.4324378090. The cubic root of 1252553490 is about 1077.9503564372.

The spelling of 1252553490 in words is "one billion, two hundred fifty-two million, five hundred fifty-three thousand, four hundred ninety".