1502251501 has 4 divisors (see below), whose sum is σ = 1502586432. Its totient is φ = 1501916572.

The previous prime is 1502251403. The next prime is 1502251523. The reversal of 1502251501 is 1051522051.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1051522051 = 24943 ⋅42157.

It is a cyclic number.

It is not a de Polignac number, because 1502251501 - 2¹⁷ = 1502120429 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 (1502251001) 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, 160645 + ... + 169738.

It is an arithmetic number, because the mean of its divisors is an integer number (375646608).

Almost surely, 2^1502251501 is an apocalyptic number.

It is an amenable number.

1502251501 is a deficient number, since it is larger than the sum of its proper divisors (334931).

1502251501 is an equidigital number, since it uses as much as digits as its factorization.

1502251501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334930.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 1502251501 is about 38758.8893158718. The cubic root of 1502251501 is about 1145.2866951786.

Adding to 1502251501 its reverse (1051522051), we get a palindrome (2553773552).

The spelling of 1502251501 in words is "one billion, five hundred two million, two hundred fifty-one thousand, five hundred one".