1425556724 has 12 divisors (see below), whose sum is σ = 2508508548. Its totient is φ = 708840000.

The previous prime is 1425556697. The next prime is 1425556733. The reversal of 1425556724 is 4276555241.

It can be written as a sum of positive squares in 2 ways, for example, as 509404900 + 916151824 = 22570^2 + 30268^2 .

It is a super-2 number, since 2×1425556724² = 4064423946683224352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983777 + ... + 985224.

It is an arithmetic number, because the mean of its divisors is an integer number (209042379).

Almost surely, 2^1425556724 is an apocalyptic number.

It is an amenable number.

1425556724 is a deficient number, since it is larger than the sum of its proper divisors (1082951824).

1425556724 is a wasteful number, since it uses less digits than its factorization.

1425556724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969186 (or 1969184 counting only the distinct ones).

The product of its digits is 336000, while the sum is 41.

The square root of 1425556724 is about 37756.5454457899. The cubic root of 1425556724 is about 1125.4550847568.

The spelling of 1425556724 in words is "one billion, four hundred twenty-five million, five hundred fifty-six thousand, seven hundred twenty-four".