531101220445425 has 48 divisors (see below), whose sum is σ = 1003532015332352. Its totient is φ = 242788254984000.

The previous prime is 531101220445421. The next prime is 531101220445457. The reversal of 531101220445425 is 524544022101135.

It is not a de Polignac number, because 531101220445425 - 2² = 531101220445421 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531101220445421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 157326612 + ... + 160666938.

Almost surely, 2^{531101220445425} is an apocalyptic number.

It is an amenable number.

531101220445425 is a deficient number, since it is larger than the sum of its proper divisors (472430794886927).

531101220445425 is a wasteful number, since it uses less digits than its factorization.

531101220445425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643198 (or 3643193 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 39.

The spelling of 531101220445425 in words is "five hundred thirty-one trillion, one hundred one billion, two hundred twenty million, four hundred forty-five thousand, four hundred twenty-five".