1457522257540 has 12 divisors (see below), whose sum is σ = 3060796740876. Its totient is φ = 583008903008.

The previous prime is 1457522257523. The next prime is 1457522257559. The reversal of 1457522257540 is 457522257541.

It can be written as a sum of positive squares in 2 ways, for example, as 757676238916 + 699846018624 = 870446^2 + 836568^2 .

It is a super-2 number, since 2×1457522257540² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36438056419 + ... + 36438056458.

It is an arithmetic number, because the mean of its divisors is an integer number (255066395073).

Almost surely, 2^{1457522257540} is an apocalyptic number.

1457522257540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1457522257540 is an abundant number, since it is smaller than the sum of its proper divisors (1603274483336).

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

1457522257540 is a wasteful number, since it uses less digits than its factorization.

1457522257540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72876112886 (or 72876112884 counting only the distinct ones).

The product of its (nonzero) digits is 3920000, while the sum is 49.

Subtracting from 1457522257540 its reverse (457522257541), we obtain a palindrome (999999999999).

The spelling of 1457522257540 in words is "one trillion, four hundred fifty-seven billion, five hundred twenty-two million, two hundred fifty-seven thousand, five hundred forty".