1250542501 has 4 divisors (see below), whose sum is σ = 1346738092. Its totient is φ = 1154346912.

The previous prime is 1250542481. The next prime is 1250542519. The reversal of 1250542501 is 1052450521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 373494276 + 877048225 = 19326^2 + 29615^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250542501 - 2⁷ = 1250542373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1250542541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48097776 + ... + 48097801.

It is an arithmetic number, because the mean of its divisors is an integer number (336684523).

Almost surely, 2^1250542501 is an apocalyptic number.

It is an amenable number.

1250542501 is a deficient number, since it is larger than the sum of its proper divisors (96195591).

1250542501 is an equidigital number, since it uses as much as digits as its factorization.

1250542501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96195590.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1250542501 is about 35363.0103497991. The cubic root of 1250542501 is about 1077.3731602066.

The spelling of 1250542501 in words is "one billion, two hundred fifty million, five hundred forty-two thousand, five hundred one".