7225671557 has 16 divisors (see below), whose sum is σ = 8239560000. Its totient is φ = 6318769392.

The previous prime is 7225671533. The next prime is 7225671637. The reversal of 7225671557 is 7551765227.

It is not a de Polignac number, because 7225671557 - 2¹⁶ = 7225606021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7225671457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44807 + ... + 128292.

It is an arithmetic number, because the mean of its divisors is an integer number (514972500).

Almost surely, 2^7225671557 is an apocalyptic number.

It is an amenable number.

7225671557 is a deficient number, since it is larger than the sum of its proper divisors (1013888443).

7225671557 is a wasteful number, since it uses less digits than its factorization.

7225671557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173157 (or 173131 counting only the distinct ones).

The product of its digits is 1029000, while the sum is 47.

The square root of 7225671557 is about 85003.9502435034. The cubic root of 7225671557 is about 1933.2710114638.

The spelling of 7225671557 in words is "seven billion, two hundred twenty-five million, six hundred seventy-one thousand, five hundred fifty-seven".