1253707500 has 120 divisors (see below), whose sum is σ = 3870898416. Its totient is φ = 314624000.

The previous prime is 1253707493. The next prime is 1253707513. The reversal of 1253707500 is 57073521.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 122584 + ... + 132416.

Almost surely, 2^1253707500 is an apocalyptic number.

1253707500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1253707500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1935449208).

1253707500 is an abundant number, since it is smaller than the sum of its proper divisors (2617190916).

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

1253707500 is a wasteful number, since it uses less digits than its factorization.

1253707500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9877 (or 9860 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 1253707500 is about 35407.7322063981. The cubic root of 1253707500 is about 1078.2813026905.

It can be divided in two parts, 125370 and 7500, that added together give a triangular number (132870 = T₅₁₅).

The spelling of 1253707500 in words is "one billion, two hundred fifty-three million, seven hundred seven thousand, five hundred".