1225425424540 has 24 divisors (see below), whose sum is σ = 2573424114912. Its totient is φ = 490164317760.

The previous prime is 1225425424537. The next prime is 1225425424577. The reversal of 1225425424540 is 454245245221.

It is a super-2 number, since 2×1225425424540² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1225425424493 and 1225425424502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1612230 + ... + 2247250.

It is an arithmetic number, because the mean of its divisors is an integer number (107226004788).

Almost surely, 2^{1225425424540} is an apocalyptic number.

1225425424540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225425424540 is an abundant number, since it is smaller than the sum of its proper divisors (1347998690372).

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

1225425424540 is a wasteful number, since it uses less digits than its factorization.

1225425424540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731517 (or 731515 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 40.

The spelling of 1225425424540 in words is "one trillion, two hundred twenty-five billion, four hundred twenty-five million, four hundred twenty-four thousand, five hundred forty".