1495258252491 has 4 divisors (see below), whose sum is σ = 1993677669992. Its totient is φ = 996838834992.

The previous prime is 1495258252469. The next prime is 1495258252559. The reversal of 1495258252491 is 1942528525941.

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

It is not a de Polignac number, because 1495258252491 - 2⁶ = 1495258252427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1495258252091) 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, 249209708746 + ... + 249209708751.

It is an arithmetic number, because the mean of its divisors is an integer number (498419417498).

Almost surely, 2^{1495258252491} is an apocalyptic number.

1495258252491 is a deficient number, since it is larger than the sum of its proper divisors (498419417501).

1495258252491 is an equidigital number, since it uses as much as digits as its factorization.

1495258252491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498419417500.

The product of its digits is 10368000, while the sum is 57.

The spelling of 1495258252491 in words is "one trillion, four hundred ninety-five billion, two hundred fifty-eight million, two hundred fifty-two thousand, four hundred ninety-one".