3551425756572 has 24 divisors (see below), whose sum is σ = 8301378871296. Its totient is φ = 1181705903728.

The previous prime is 3551425756561. The next prime is 3551425756601. The reversal of 3551425756572 is 2756575241553.

It is a happy number.

It is a super-2 number, since 2×3551425756572² (a number of 26 digits) 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 7 ways as a sum of consecutive naturals, for example, 262828188 + ... + 262841699.

It is an arithmetic number, because the mean of its divisors is an integer number (345890786304).

Almost surely, 2^{3551425756572} is an apocalyptic number.

It is an amenable number.

3551425756572 is an abundant number, since it is smaller than the sum of its proper divisors (4749953114724).

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

3551425756572 is a wasteful number, since it uses less digits than its factorization.

3551425756572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525670457 (or 525670455 counting only the distinct ones).

The product of its digits is 44100000, while the sum is 57.

The spelling of 3551425756572 in words is "three trillion, five hundred fifty-one billion, four hundred twenty-five million, seven hundred fifty-six thousand, five hundred seventy-two".