725537401461 has 12 divisors (see below), whose sum is σ = 1048051786080. Its totient is φ = 483666993000.

The previous prime is 725537401447. The next prime is 725537401481. The reversal of 725537401461 is 164104735527.

725537401461 is a `hidden beast` number, since 7 + 2 + 5 + 537 + 40 + 14 + 61 = 666.

It is not a de Polignac number, because 725537401461 - 2⁵ = 725537401429 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725537401481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1863031 + ... + 2218548.

It is an arithmetic number, because the mean of its divisors is an integer number (87337648840).

Almost surely, 2^725537401461 is an apocalyptic number.

It is an amenable number.

725537401461 is a deficient number, since it is larger than the sum of its proper divisors (322514384619).

725537401461 is a wasteful number, since it uses less digits than its factorization.

725537401461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4101336 (or 4101333 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 725537401461 in words is "seven hundred twenty-five billion, five hundred thirty-seven million, four hundred one thousand, four hundred sixty-one".