1255202040 has 64 divisors (see below), whose sum is σ = 3770674560. Its totient is φ = 334270080.

The previous prime is 1255202033. The next prime is 1255202119. The reversal of 1255202040 is 402025521.

It is a happy number.

It is a super-2 number, since 2×1255202040² = 3151064322440323200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1255201998 and 1255202016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87795 + ... + 101085.

It is an arithmetic number, because the mean of its divisors is an integer number (58916790).

Almost surely, 2^1255202040 is an apocalyptic number.

1255202040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255202040 is an abundant number, since it is smaller than the sum of its proper divisors (2515472520).

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

1255202040 is a wasteful number, since it uses less digits than its factorization.

1255202040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14092 (or 14088 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1255202040 is about 35428.8306326924. The cubic root of 1255202040 is about 1078.7096042398.

Adding to 1255202040 its reverse (402025521), we get a palindrome (1657227561).

The spelling of 1255202040 in words is "one billion, two hundred fifty-five million, two hundred two thousand, forty".